Critical Issues in Transportation for 2024 and Beyond

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align-content: space-between; align-items: stretch; justify-content: flex-start; flex-direction: column; position: relative; margin-bottom: 10px; flex: 1; } .flex-row.row2 { display: flex; align-content: space-between; align-items: stretch; justify-content: flex-start; flex-direction: row; position: relative; margin-bottom: 10px; flex: 1; } .resource-list li { text-indent: 0px; padding-left: 20px; display: block; border: 1px solid #ccc; padding: 10px; margin-right: 5px; border-radius: 5px; white-space: nowrap; margin-bottom: 10px; } } #resourceblock h4 { font-family: "lato", sans-serif; font-weight: bold; font-size: 14px; } #statusblock { position: absolute; top: -10px; left: 0px; } #actions { position: absolute; right: 0px; top: -10px; } .btn-tool { display: inline; padding: 5px; background: #fff; margin-right: 3px; } a.btn-tool { color: #336699; font-size: 12px; padding-left: 25px; position: relative; } a.btn-tool.email-this { color: #4148C2; font-size: 12px; padding-left: 0px; position: relative; } .link-tools { display: flex; } .tooltip-inner { max-width: 300px; padding: 2rem; text-align: left; background-color: #333; color: #fff; border-radius: 0rem; } .report-type { font-size: 14px; font-weight: 400; padding-left: 10px; } .report-type:before { font-family: 'icomoon'; speak: none; content: "\e65a"; margin-right: 5px; color: #bc9b6a; opacity: .6; } .lt-addmynap-on, .lt-embed { color: #336699; position: absolute; left: 5px; top: 5px; } .lt-addmynap-off { color: green; position: absolute; left: 5px; top: 5px; } .btn-clear { border: 1px solid #4148C2; border-radius: 4px; } .alert-info { color: #333; } .alert { padding: 15px; margin-bottom: 20px; background-color: #d9edf7; border-color: #a7d5de; border-radius: 4px; } .row-title.ft { padding-bottom: 10px; font-size: 1.25em; line-height: 1.25; border-bottom: 0px; } .book-tile h4 { font-family: "lato", helvetica, sans-serif; font-size: 14px; } .panel-body { padding: 20px 40px; border-top: none; } #stats { padding: 40px; background-image: linear-gradient(180deg, #f3f1eb 0, rgba(243,241,235,0) 250px); } .panel-default > .panel-heading { padding: 20px; background: #9ec0d5; } .panel-group .panel-heading + .panel-collapse .panel-body { border: none; } .panel-heading.cp-accordion-toggle.collapsed.in:after { content: "\2796"; } .cp-accordion { font-size: 20px; font-weight: 900; } h4.panel-title { font-family: 'lato'; font-weight: 700; font-size: 1.3em; line-height: 1; } .panel-heading .cp-accordion-toggle:after { content: "\2796"; /* Unicode character for "minus" sign (-) */ font-size: 13px; color: #777; float: right; margin-left: 5px; } .panel-heading .cp-accordion-toggle.collapsed:after { /* symbol for "collapsed" panels */ content: '\02795'; /* adjust as needed, taken from bootstrap.css */ } .cp-accordion-toggle.collapsed.in:after { content: "\2796"; } .chapter-name a { font-weight: 500; line-height: 1.5; } /*Responsive Video Embed*/ .videoWrapperOuter { max-width: 640px; margin-left: auto; margin-right: auto; margin-bottom: 20px; } .video.videoWrapperOuter h4 { font-size: 16px; font-family: 'lato', sans-serif; font-weight: 900; } .videoWrapperInner { float: none; clear: both; width: 100%; position: relative; padding-bottom: 50%; padding-top: 25px; height: 0; } .videoWrapperInner iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } h4.videoTitle { font-size: 14px; font-family: 'lato', helvetica; color: #666; } .icon-skim { color: #4148C2; margin-right: 6px; } .graysearchouter { border: 1px solid #ccc; margin-bottom: 30px; background: #fff; height: 45px; } blockquote { text-align: left !important; } .citation-formats { display: inline-flex; align-content: stretch; align-items: flex-start; justify-content: flex-start; margin-left: 0px; padding-left: 0px; list-style: none; flex-wrap: wrap; } .citation-formats li { max-width: 100%; width: 168px; margin-bottom: 5px; margin-right: 5px; } .citation-formats li a { font-size: 12px; font-weight: 500; letter-spacing: 1px; display: block; border: 1px solid #4148C2; border-radius: 4px; padding: 8px; margin-right: 3px; word-wrap: nowrap; white-space: nowrap; width: 100%; } .citation-formats li a:hover { background: #4148C2; color: white; text-decoration: none; } .citation-formats li a:before { content: "\e75c"; font-family: 'icomoon'; speak: none; margin-right: 5px; color: #4148C2; opacity: .6; } h3.citation-subheading { border-bottom: 0px; color: #565555; font-size: 14px; } h3 { font-size: 14px; margin-bottom: 20px; font-weight: 700; color: #333; text-transform: uppercase; } .embargo-row { padding: 1rem; background: #eed9d9; text-align: center; } .mynap-promo { padding: 10px; margin-bottom: 20px; background: #efefef; border: 1px solid #ccc; border-radius: 4px; } .mynap-promo.visible-xs.visible-sm { padding: 10px; background: #fff; margin: 10px 0px; } @media screen and (max-width: 500px) { .flex-row.row2 { display: flex; align-content: space-between; align-items: stretch; justify-content: flex-start; flex-direction: row; position: relative; margin-bottom: 10px; flex: 1; flex-wrap: wrap; } .flex-row-cover { flex-direction: column; } #titleblock h1 { font-size: 18px; line-height: 22px; margin: 0px; word-wrap: break-word; max-width: 100%; } .btn { text-align: left; white-space: wrap !important; font-size: 16px; width: 100%; } .btn-buy-top { width: 100%; } } @media screen and (max-width: 768px) { .flex-item.rel-info { display: none; max-width: 100%; } .container { padding: 0px; } .panel-body { padding: 0px; } .flex-item.searchob, .flex-item.toclist { width: 97%; } } @media screen and (max-width: 980px) { .flex-item.rel-info { max-width: 100%; } } </style> <style>pre { background-color: transparent !important; }</style> </head> <body>  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-N9MJ23" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <a name="top" id="top"></a> <a href="#content" class="sr-only sr-only-focusable">Skip to main content</a> <style> body { overflow-x: hidden; } #lowerMenu { background: #fff } .global-nav--local .mega-menu { display: block; -webkit-transform: translateY(0em); transform: translateY(0em); } .global-nav--local.search-is-hidden .mega-menu { display: none; -webkit-transform: translateY(0em); transform: translateY(0em); } .global-nav .container:not(.mega-menu__header) { padding: 0rem; padding-top: 0rem; padding-right: 0rem; padding-top: 0.5rem; padding-right: 1rem; } .global-nav__controls { top: .3rem; padding-right: 20px; } .global-nav--local .global-nav__links { -webkit-transform: translateY(0); transform: translateY(0); max-width: 75%; float: right; background: #fff; } .global-nav__links ul { display: -webkit-flex; display: flex; -webkit-justify-content: flex-end; justify-content: flex-end; margin-top: .5rem; } .global-nav--local.menu-is-hidden .global-nav__links { opacity: 0; -webkit-transform: translateY(0.5em); transform: translateY(0.5em); visibility: hidden; } #header-large { max-width: 1180px; margin: 0; padding: 0 0; -webkit-box-shadow: none; -moz-box-shadow: none; box-shadow: none; flex-wrap: nowrap; position: absolute; top: 113px; text-align: right; width: 100%; right: 0; } #header-large .user-links { white-space: nowrap; display: inline-flex; margin: 0; padding: 0; background: #fff; z-index: 0; list-style: none; min-width:500px; } .user-links li { margin-right: 7%; } .user-links li a { font-size: 10px; text-align: left; text-transform: uppercase; color: #000; } #header-large a.site-links { margin-right: 15px; color: #000; padding-left: 0px; padding-right: 5px; font-size: 12px; text-transform: uppercase; } .site-links:hover { text-decoration: underline; } nav#sitelinks-wide { position: absolute; top: 16px; } #sitelinks-wide ul { display: flex; justify-content: space-between; margin: 0; padding: 0; } #sitelinks-wide ul li { #sitelinks-mobile { display: none; } white-space: nowrap; } #sitelinks-mobile { display: none; } .user-links li a:hover { text-decoration: underline; } .dropdown-menu { position: absolute; top: 100%; left: 10px; z-index: 9999999; display: none; float: left; min-width: 160px; padding: 5px 0; margin: 2px 0 0; list-style: none; font-size: 14px; background-color: #ffffff; border: 1px solid #cccccc; border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 4px; -webkit-box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175); box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175); background-clip: padding-box; } #dropdownMenuButton { border: 1px solid #ccc; font-size: 14px; font-weight: 700; } .dropdown #dropdownMenuButton:after { content: '\02795'; /* Unicode character for "plus" sign (+) */ font-size: 13px; color: #777; float: right; margin-left: 5px; } .dropdown.open #dropdownMenuButton:after { content: "\2796"; /* Unicode character for "minus" sign (-) */ } li.naphelp { display: block;} @media (max-width: 930px) { #header-large { right: 80px; } #header-large .user-links { min-width:100px; } nav#sitelinks-wide { display: none; } #sitelinks-mobile { display: block; position: absolute; top: -10px; left: 107px; } #sitelinks-wide ul { display: block; } #sitelinks-wide ul li { margin-right: 0%; white-space: nowrap; } .dropdown-item { display: block; width: 100%; padding: .25rem 1.5rem; clear: both; font-weight: 400; color: #212529; text-align: inherit; white-space: nowrap; background-color: transparent; border: 0; text-align: left; } .dropdown.nap-mega-menu.mega-dropdown { display: none;} li.naphelp { display: none;} } .global-nav__links { display: none; opacity: 1; transition: opacity .15s, -webkit-transform .15s; transition: opacity .15s, transform .15s; transition: opacity .15s, transform .15s, -webkit-transform .15s; } .global-nav--local .global-nav__links { -webkit-transform: translateY(0); transform: translateY(0); } .global-nav--local.menu-is-hidden .global-nav__links { opacity: 0; -webkit-transform: translateY(0.5em); transform: translateY(0.5em); } .global-nav__links ul { display: -webkit-flex; display: flex; -webkit-justify-content: flex-end; justify-content: flex-end; margin-top: 1rem; } .global-nav__links li:hover .global-nav__link>span::before, .global-nav__links li:focus-within .global-nav__link>span::before, .global-nav__links .global-nav__link.is-active>span::before, .global-nav__links .global-nav__link:hover>span::before, .global-nav__links .global-nav__link:focus>span::before { background-color: #1C143D; ; } .global-nav__links li:hover .global-nav__link>span::before::after, .global-nav__links li:focus-within .global-nav__link>span::before::after, .global-nav__links .global-nav__link.is-active>span::before::after, .global-nav__links .global-nav__link:hover>span::before::after, .global-nav__links .global-nav__link:focus>span::before::after { opacity: 1; } @media screen and (min-width: 65em) { .global-nav__links { display: block; } .global-nav__links>ul>li:last-of-type .global-nav__link { margin-right: -1.25em; } } .global-nav__link { position: relative; display: block; padding: .75em 1.5em .5em; color: rgb(34, 34, 34); color: var(--color-neutral--charcoal); border-bottom: 5px solid transparent; /*font-size: .885rem;*/ font-weight: 700; font-weight: var(--lato--bold); text-decoration: none; transition: color .15s; } .global-nav__link>span { position: relative; } .global-nav__link>span::before { content: ""; position: absolute; bottom: -.5em; left: 0; width: 100%; height: 5px; background-color: transparent; transition: background-color .15s; } .global-nav__dropdown { position: absolute; top: calc(100% + 1em); left: 50%; display: none; width: 600px; background-color: rgb(255, 255, 255); background-color: var(--color-neutral--white); box-shadow: 0 5px 15px rgba(34, 34, 34, .25); box-shadow: 0 5px 15px var(--box-shadow--charcoal); -webkit-transform: translateX(-50%); transform: translateX(-50%); z-index: 20; } .global-nav__dropdown::before { content: ""; position: absolute; top: -1em; left: 0; display: block; width: 100%; height: 1em; } .global-nav__dropdown .dropdown__left { position: relative; min-height: 260px; width: 40%; padding: 1.5rem; background: rgb(255,255,255); background: -moz-linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(73,69,104,1) 0%, rgba(0,0,0,1) 100%, rgba(195,228,228,1) 100%); background: -webkit-linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(73,69,104,1) 0%, rgba(0,0,0,1) 100%, rgba(195,228,228,1) 100%); background: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(73,69,104,1) 0%, rgba(0,0,0,1) 100%, rgba(195,228,228,1) 100%); filter: progid:DXImageTransform.Microsoft.gradient(startColorstr="#ffffff",endColorstr="#c3e4e4",GradientType=1); } .global-nav__dropdown .dropdown__left a { display: block; color: rgb(255, 255, 255); color: var(--color-neutral--white); font-weight: 400; font-weight: var(--lato--regular); transition: color .15s; font-size: 16px; } .global-nav__dropdown .dropdown__left a:hover, .global-nav__dropdown .dropdown__left a:focus, .global-nav__dropdown .dropdown__left a:active { color: rgb(246,210,0); color: var(--color-yellow--pure); } .global-nav__dropdown .dropdown__left ul { -webkit-flex-direction: column; flex-direction: column; } .global-nav__dropdown .dropdown__left li a { padding: .5em 0; line-height: 1.4; } .global-nav__dropdown .dropdown__left--default { position: absolute; top: 0; right: 0; bottom: 0; left: 0; overflow: hidden; background-color: rgb(243, 241, 235); background-color: var(--color-brown--bone); } .global-nav__dropdown .dropdown__left--default img { width: 100%; height: auto; /* stylelint-disable max-nesting-depth */ /* stylelint-enable max-nesting-depth */ } @supports (object-fit: cover) { .global-nav__dropdown .dropdown__left--default img { height: 100%; object-fit: cover; } } .global-nav__dropdown .dropdown__right { width: 60%; padding: 1.5rem; } .global-nav__dropdown .dropdown__right .button { margin-top: 2em; text-shadow: none; } .global-nav__dropdown .dropdown__right a { color: rgb(0, 89, 145); color: var(--color-blue--bahama); text-decoration: none; transition: color .15s; } .global-nav__dropdown .dropdown__right a:hover, .global-nav__dropdown .dropdown__right a:focus { color: rgb(33,23,71); color: var(--color-blue--imperial); text-decoration: underline; } .rm-dropdown:hover::after, .rm-dropdown:focus::after { visibility: hidden; } .has-dropdown { position: relative; } .has-dropdown::after { content: ""; position: absolute; top: calc(100% + 3px); left: 50%; width: 26px; height: 15px; background-image: url(data:image/png;base64,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); background-repeat: no-repeat; -webkit-transform: translateX(-50%); transform: translateX(-50%); visibility: hidden; } .has-dropdown:hover::after, .has-dropdown:focus::after { visibility: visible; } .has-dropdown:hover .global-nav__dropdown { display: -webkit-flex; display: flex; } .has-dropdown:focus-within .global-nav__dropdown { display: -webkit-flex; display: flex; } .has-dropdown:nth-last-of-type(-n+3) .global-nav__dropdown { left: auto; -webkit-transform: none; transform: none; } .has-dropdown:nth-last-of-type(3) .global-nav__dropdown { right: -200%; } .has-dropdown:nth-last-of-type(2) .global-nav__dropdown { right: -90%; } .has-dropdown:last-of-type .global-nav__dropdown { right: 5%; } .global-nav__links { z-index: 5; } header.global-nav { height: 150px; } .button.button--secondary.button--outline.button--icon { font-size: 12px; padding-right: 40px; } .button.button--icon svg { height: 2.5em; position: absolute; top: 50%; left: 60%; -webkit-transform: translate(-50%, -50%); transform: translate(-50%, -50%); width: 24px; } .controls__search, .controls__menu, .controls__nav { font-size: 12px; } .global-nav__menus--upper { display: -webkit-flex; display: flex; -webkit-justify-content: space-between; justify-content: space-between; margin-bottom: 2rem; } .global-nav__link { font-size: 16px; } .global-nav__links ul { display: -webkit-flex; display: flex; -webkit-justify-content: flex-end; justify-content: flex-end; margin-top: 5px; list-style: none; } .invert { background: #000; color: #fff; } .controls__nav .menu-off { display: inline; } .controls__nav .menu-on { display: none; } .controls__nav.invert .menu-off { display: none } .controls__nav.invert .menu-on { display: inline; } .mega-menu { background-color: rgb(243, 241, 235); background-color: var(--color-brown--bone); position: fixed; top: 0; right: 0; bottom: 0; left: 0; overflow: scroll; z-index: 9999999; } .mega-menu .mega-menu__header { display: -webkit-flex; display: flex; -webkit-justify-content: space-between; justify-content: space-between; -webkit-align-items: center; align-items: center; padding-top: 1rem; } .mega-menu__content .search-form__container { position: relative; max-width: 70em; margin: 0 auto; } #search .global-nav__logo { position: absolute; top: 1em; } .sf-top { margin-top: 50px; } #searchFormNAP { display: block; height: 100px; } a:hover, a:focus { color: #1C143D; text-decoration: underline; } #fixedfooter a:hover, #fixedfooter a:focus { color: #fff; text-decoration: underline; } .btn-blueflat.btn-searchhome.hide-xs { display: none; } .mega-menu__content { margin-top: 50px; margin-left: 7px; } .accordion__title.faq__accordion__title .flex.justify-between { display: inherit; } .global-nav__logo { margin: 0px !important; position: absolute; left: 15px; top: 25px; height: 55px; } .global-nav__link:hover { text-decoration: none; } @media screen and (min-width: 65em) { .mega-menu__content .search-form { padding: 1em 0px 3em 0em; } } @media (min-width: 45rem) { .global-nav__logo {} } @media (max-width: 480px) { .global-nav__logo { margin: 0px !important; position: absolute; left: 15px; top: 12px; } } /* Style the buttons that are used to open and close the accordion panel */ #mobile-menu button.accordion, #mobile-menu button.no-accordion { letter-spacing: 1px; text-align: left; color: #4148C2; font-size: 1.1em; font-weight: 700 !important; font-family: 'lato', helvetica, sans-serif; padding: 15px 0px 15px 0px; border-top: none !important; border-bottom: .5px solid rgb(221, 213, 199) !important; cursor: pointer; width: 100%; } .mega-menu__content .accordion { border: 0; font-weight: 700; } #mobile-menu .accordion:after { content: '\02795'; /* Unicode character for "plus" sign (+) */ font-size: 13px; color: #777; float: right; margin-left: 5px; } #mobile-menu button.active:after { content: "\2796"; /* Unicode character for "minus" sign (-) */ } /* Add a background color to the button if it is clicked on (add the .active class with JS), and when you move the mouse over it (hover) */ #mobile-menu button.active, #mobile-menu button.accordion:hover { background-color: transparent; } /* Style the accordion panel. Note: hidden by default */ #mobile-menu .panel { padding: 0 0; background-color: transparent; max-height: 0; box-shadow: 0 !important; overflow: hidden; transition: max-height 0.2s ease-out; margin: 0px !important; border: 0 !important; } #mobile-menu .panel ul li { margin: 0px 0px; padding-left: 0px; } #mobile-menu .panel ul { margin-top: 10px; margin-bottom: 10px; padding-left: 0px; } #mobile-menu .panel ul li { line-height: 2; } #mobile-menu .panel ul li a { color: #000; text-decoration: underline; cursor: pointer; } .controls__menu-mobile { text-transform: uppercase; } .controls__menu-mobile svg { fill: #222; fill: var(--color-neutral--charcoal); width: 1.75rem; height: 1.75rem; } .cart-badge { display: inline-block; text-align: center; line-height: 1; background: #7899F2; color: white; font-weight: bold; border-radius: 20px; padding: 3px 6px; margin-left: 3px; } @media screen and (min-width: 65em) { #mobile-menu .controls__menu { display: inline; } } @media screen and (max-width: 65em) { #mobile-menu .controls__menu svg { display: inline; } } /*NAP mega menu dropdown*/ li.nap-mega-menu.mega-dropdown { position: static !important; width:100% !important; } .nap-mega-menu .mega-dropdown-menu { padding: 20px 0px; box-shadow: none; -webkit-box-shadow: none; margin-top: 10px !important; box-shadow: 0 5px 15px var(--box-shadow--charcoal); transform: none !important; top: 100% !important; } .nap-mega-menu .mega-dropdown-menu > li > ul.browse-col { padding: 0; margin: 0; width: 100%; } .nap-mega-menu .mega-dropdown-menu > li > ul > li { list-style: none; } .nap-mega-menu .mega-dropdown-menu > li > ul > li > a { display: block; padding: 3px 20px; clear: both; font-weight: normal; line-height: 1.428571429; color: #4148C2; white-space: normal; font-size: 14px; text-transform: none; } .nap-mega-menu .mega-dropdown-menu > li ul > li > a:hover, .nap-mega-menu .mega-dropdown-menu > li ul > li > a:focus { text-decoration: none; color: #444; background-color: #f5f5f5; } .nap-mega-menu .mega-dropdown-menu .dropdown-header a { color: #4148C2; font-size: 14px; font-weight: 900 !important; text-align: left; text-transform: uppercase !important; padding: 0px; margin-bottom: 7px; } .nap-mega-menu .mega-dropdown-menu form { margin:3px 20px; } .nap-mega-menu .mega-dropdown-menu .form-group { margin-bottom: 3px; } .nap-mega-menu .vertical-divider { border-left: 1px solid #ccc; } .nap-mega-menu .mega-dropdown-menu > li.d-flex { display: inline-flex !important; margin-right: 0 !important; justify-content: space-between; flex-wrap: nowrap !important; flex-direction: row !important; } #nap-mega-menu-inner { justify-content: space-between; align-content:start; } #nap-mega-menu-inner li.browse-col { width: 22%; } </style> <header class="global-nav global-nav--local menu-is-hidden search-is-hidden" id="lowerMenu"> <div class="container flex justify-between">  <div aria-hidden="true" class="mega-menu" id="search"> <div data-lock=""> <div class="container 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[<a href="/content/using-mynap">Learn More</a>]</div> <div class="flex-row row"> <div class="row flex-row-actions"> <div id="actions" > <div class="link-tools" style="padding-bottom: 20px;">  </div> </div> </div> </div>  <div class="flex-row row2" style="padding-top:20px;"> <div class="flex-item cover"> <div id="cover" class="cover-block"><a href="https://nap.nationalacademies.org/read/27432" data-toggle="tooltip" title="Read Online" id="read-cov"> <img class="img-responsive img-cover150" src="https://nap.nationalacademies.org/cover/27432/450" alt="Critical Issues in Transportation for 2024 and Beyond" itemprop="image"></a> </div> <div data-toggle="modal" data-target="#myCover" class="text-center"> <p class="btn btn-text" style="color: #4148C2; font-size: 12px; cursor: pointer; margin-top: 5px;">VIEW LARGER COVER</p></div> <div class="modal fade" id="myCover" tabindex="-1" role="dialog" aria-labelledby="myCoverLabel" aria-hidden="true"> <div class="modal-dialog modal-lg" role="document"> <div class="modal-content"> <div class="modal-header" style="border-bottom: none"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"> <span aria-hidden="true" style="color: black;">×</span> </button> </div> <div class="modal-body text-center"> <img class="img-fluid img-responsive" src="https://nap.nationalacademies.org/cover/27432/450" alt="Critical Issues in Transportation for 2024 and Beyond" itemprop="image"> </div> <div class="modal-footer"> <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button> </div> </div> </div> </div> </div> <div class="flex-item book-details" > <div class="row"> <div id="titleblock"> <a href="https://nap.nationalacademies.org/read/27432"> <h1 class="catalog-title">Critical Issues in Transportation for 2024 and Beyond</h1> </a> <div class="bookyear"> <span itemprop="copyrightYear">(2024)</span></div> </div> </div>  <div class="row"> <div class="book-actions flex-row-btnbuy"> <div class="btn-buy-top"><a href="https://nap.nationalacademies.org/login.php?record_id=27432" class="btn btn-primary action-button action-download">Download Free PDF</a></div> <div class="btn-buy-top"><a href="https://nap.nationalacademies.org/read/27432" class="btn btn-primary action-button action-read">Read Free Online</a></div> </div> </div>  <div class="row"> <div id="descriptionblock"> <div class="book-description" itemprop="description"><p><em>Critical Issues in Transportation for 2024 and Beyond</em> calls for reassessing the role of transportation in addressing major societal challenges and the research that informs the choices that society will need to make in 2024 and coming years. This reassessment is driven by large-scale environmental, public health, and socioeconomic forces, including:</p> <ul> <li>a massive shift away from fossil fuels to clean energy that requires a complete turnover of hundreds of millions of motor vehicles by 2050 to help meet national decarbonization goals;</li> <li>threats to public transportation caused by COVID-19’s enduring effects on commuting to work in urban areas;</li> <li>reversal of the long-term downward trend in annual traffic fatalities that have resulted in 10,000 more motor vehicle deaths than a decade ago; and</li> <li>society’s grappling with the nation’s history of racial discrimination and increasing disparities in wealth and incomes.</li> </ul> <p>For the latest edition of Critical Issues in Transportation, the Transportation Research Board’s Executive Committee chose to focus on five societal goals to address these and other dynamic forces and the challenges in accentuating transportation’s role in achieving them.</p> </div> </div> </div>   <div class="row"> <div id="contributorblock"> <div class="book-author" itemprop="author"><b>Contributor(s): </b> National Academies of Sciences, Engineering, and Medicine; <a href="/author/TRB">Transportation Research Board</a>; Transportation Research Board Executive Committee </div> </div> </div>   <div class="social-share"> <span class="social-share--title"> Share </span> <div class="social-share--networks" style="cursor: pointer;"> <a onclick="Share.linkedin('https://nap.nationalacademies.org/catalog/27432','Critical\u0020Issues\u0020in\u0020Transportation\u0020for\u00202024\u0020and\u0020Beyond')"> <span tabindex="0" data-link="#share-linkedin" class="connect-linkedin"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 30" class="" title="LinkedIn"> <path fill-rule="evenodd" d="M7 23V10.533h3.4V23H7zm12.467-12.467c2.558 0 4.533 2.034 4.533 5.665V23h-3.4v-6.347c0-1.586-.779-2.679-2.192-2.679-1.082 0-1.94.736-2.223 1.443-.097.251-.118.608-.118.959V23h-3.4s.088-11.333.035-12.467h3.365l-.04 2.267c.516-1.133 1.335-2.267 3.44-2.267zM10.4 7.7a1.7 1.7 0 11-3.4 0 1.7 1.7 0 013.4 0z"></path> </svg> </span> </a> <a onclick="Share.twitter('https://nap.nationalacademies.org/catalog/27432','Critical\u0020Issues\u0020in\u0020Transportation\u0020for\u00202024\u0020and\u0020Beyond')"> <span tabindex="0" data-link="#share-twitter" class="connect-twitter"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 30" class="" title="Twitter"> <path fill-rule="evenodd" d="M24 9.775a7.238 7.238 0 01-2.121.598 3.787 3.787 0 001.625-2.096 7.253 7.253 0 01-2.347.92A3.65 3.65 0 0018.461 8c-2.04 0-3.695 1.697-3.695 3.787 0 .298.033.586.096.863-3.07-.157-5.793-1.665-7.615-3.956a3.853 3.853 0 00-.499 1.904c0 1.313.853 2.472 1.845 3.151-.606-.02-1.473-.191-1.473-.475v.05c0 1.833 1.072 3.363 2.761 3.712-.31.086-.736.133-1.072.133a3.99 3.99 0 01-.746-.07c.47 1.505 1.81 2.6 3.425 2.632A7.343 7.343 0 016 21.299 10.277 10.277 0 0011.66 23c6.795 0 10.51-5.77 10.51-10.774 0-.163-.005-.328-.013-.491A7.588 7.588 0 0024 9.775"></path> </svg> </span> </a> <a onclick="Share.facebook('https://nap.nationalacademies.org/catalog/27432','Critical\u0020Issues\u0020in\u0020Transportation\u0020for\u00202024\u0020and\u0020Beyond')"> <span tabindex="0" data-link="#share-facebook" class="connect-facebook"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 30" class="" title="Facebook"> <path fill-rule="evenodd" d="M20 9.375h-2.222c-.334 0-1.111.531-1.111 1.125v2.25H20v3.375h-3.333V24h-3.334v-7.875H10V12.75h3.333V10.5c0-2.482 2.18-4.5 4.515-4.5H20v3.375"></path> </svg> </span> </a> <a href="mailto:?subject=Critical Issues in Transportation for 2024 and Beyond&body=Read%20online,%20download%20a%20free%20PDF,%20or%20order%20a%20copy%20in%20print%20or%20as%20an%20eBook https://nap.nationalacademies.org/catalog/27432" title="Share by Email"> <span tabindex="0" class="connect-email"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 30" class="" title="Email"> <path fill-rule="evenodd" d="M6 12.964v4.569c0 .296.197.386.439.2l2.822-2.15c.243-.184.243-.484 0-.669l-2.822-2.15c-.242-.185-.439-.095-.439.2zM7.125 9C6.506 9 6 9.601 6 10.071l8.514 6.455a.775.775 0 00.882.002L24 10.07C24 9.601 23.494 9 22.875 9H7.125zm13.613 6.584l2.822 2.15c.243.185.44.095.44-.201v-4.569c0-.295-.197-.385-.44-.2l-2.822 2.15c-.242.185-.242.485 0 .67zM18.26 16.8l-2.822 2.15a.764.764 0 01-.879 0l-2.822-2.15a.765.765 0 00-.88-.001L6 20.495v.29c0 .471.506 1.072 1.125 1.072h15.75c.619 0 1.125-.6 1.125-1.071v-.29L19.141 16.8a.767.767 0 00-.88.001z"></path> </svg> </span> </a> </div> </div>  </div>  <div class="flex-item rel-info"> <div class="mynap-promo hidden-xs"><a href="https://nap.nationalacademies.org/login.php?record_id=27432"><strong>Login</strong></a> or <a href="/login.php?action=new"><strong>Register</strong></a> for a free MyNAP member account to save 10% off online and receive other benefits. [<a href="/content/using-mynap">Learn More</a>]</div> <h1>RESOURCES AT A GLANCE</h1> <ul class="resource-list"> </ul> <div class="clearfix"></div> <ul class="external-links-list"> <li><a class="link-title" href="https://nap.nationalacademies.org/resource/27432/interactive">Interactive Overview</a></li> <li><a class="link-title" href="https://www.nationalacademies.org/news/2024/07/we-cannot-solve-todays-challenges-with-yesterdays-thinking">Feature Story</a></li> </ul> <div class="clearfix"></div> <div class="clearfix"></div> </div>  </div>  </div>  </div> </div> <div class="clearfix"></div> </div> <div class="middle-rows"> <div class="container" > <button class="cp-accordion">Additional Book Information</button> <div class="panel" style="max-height: 100%"> <div class="overview"> <div class="flex-row"> <div class="flex-item overview"> <h3>Topics</h3> <ul class="book-topics"> <li><a href="/topic/422"><span class="icon-422"></span><span itemprop="about">Transportation and Infrastructure</span> — Policy </a></li> <li><a href="/topic/464"><span class="icon-464"></span> Transportation and Infrastructure — Society </a></li> <li><a href="/topic/451"><span class="icon-451"></span> Transportation and Infrastructure — Energy </a></li> <li><a href="/topic/443"><span class="icon-443"></span> Transportation and Infrastructure — Public Transportation </a></li> </ul> </div> <div class="flex-item overview"> <h3>Suggested Citation</h3> <div class="citation-string"> <blockquote> National Academies of Sciences, Engineering, and Medicine. 2024. <em>Critical Issues in Transportation for 2024 and Beyond</em>. Washington, DC: The National Academies Press. https://doi.org/10.17226/27432.</div> <h4 class="citation-subheading">Import this citation to:</h4> <ul class="citation-formats"> <li><a href="/citation.php?type=bibtex&record_id=27432">Bibtex</a></li> <li><a href="/citation.php?type=enw&record_id=27432">EndNote</a></li> <li><a href="/citation.php?type=ris&record_id=27432">Reference Manager</a></li> </ul> </blockquote> </div> <div class="flex-item overview"> <h3>Publication Info</h3> <span itemprop="numberOfPages"> 78</span> pages |  8.5 x 11 |  DOI: <a href="https://doi.org/10.17226/27432">https://doi.org/10.17226/27432</a><br> </div> </div> </div> </div> <button class="cp-accordion">Contents</button> <div class="panel" style="max-height: 100%"> <div id="toc"> <div class="flex-row toc" style="align-items: flex-start;"> <div class="flex-item toclist"> <table class="table"> <thead> <tr> <th>Chapters</th> <td></td> <th class="key-chapskim" >skim</th> </tr> </thead> <tbody> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/1">Front Matter</a></td> <td class="chapter-page-range">i-iv</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=i-iv" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/2">Contents</a></td> <td class="chapter-page-range">1-1</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=1-1" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/3">Executive Summary</a></td> <td class="chapter-page-range">2-5</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=2-5" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/4">Introduction</a></td> <td class="chapter-page-range">6-7</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=6-7" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/5">Movement of People and Goods</a></td> <td class="chapter-page-range">8-11</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=8-11" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/6">Building and Sustaining a Strong, Competitive Economy</a></td> <td class="chapter-page-range">12-15</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=12-15" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/7">Mitigating and Responding to Climate Change</a></td> <td class="chapter-page-range">16-20</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=16-20" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/8">Increasing Road Safety</a></td> <td class="chapter-page-range">21-24</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=21-24" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/9">Advancing Public Health</a></td> <td class="chapter-page-range">25-27</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=25-27" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/10">Promoting Equity and Inclusion</a></td> <td class="chapter-page-range">28-30</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=28-30" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/11">Infrastructure Systems</a></td> <td class="chapter-page-range">31-35</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=31-35" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/12">Governance</a></td> <td class="chapter-page-range">36-37</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=36-37" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/13">Land Use</a></td> <td class="chapter-page-range">38-39</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=38-39" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/14">Funding and Finance</a></td> <td class="chapter-page-range">40-43</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=40-43" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/15">Workforce</a></td> <td class="chapter-page-range">44-47</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=44-47" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a href="https://nap.nationalacademies.org/read/27432/chapter/16">Innovation</a></td> <td class="chapter-page-range">48-50</td> <td class="chapter-skim"><a href="/skim.php?record_id=27432&chap=48-50" class="btn btn-sm btn-skim" title="skim this chapter"><span class="glyphicon glyphicon-eye-open icon-skim"></span></a></td> </tr> <tr> <td class="chapter-name"><a 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