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">自动驾驶安全</a></li><li class="noselected"><a href="Paper.aspx?BYID=451 ">驾驶行为分析</a></li></ul> </div> </div> <div class="cl_right"> <style> .cl_right .cl_right_top { height: 40px; background-image: url(Images/cl_right_b1.jpg); background-repeat: no-repeat; background-position: 0 14px; width: 100%; border-bottom: 1px solid rgb(221,221,221); } .cl_right .cl_right_top div { margin-left: 20px; margin-top: 13px; } .cl_right .cl_right_top div label { font-size: 14px; color: #434343; font-weight: 600; } .cl_right .cl_right_top div a { color: #0C58AC; text-decoration: none; } .cl_right .cl_right_top div a:hover { text-decoration: underline; } </style> <div class="cl_right_top"> <div> <label> 您现在的位置：</label><p id="ctl00_ContentPlaceHolder1_PaperRight_topl1_P_DaoHang" style="display: inline"><a href="Default.aspx">首页</a> >> <a href="Paper.aspx">学术论文</a> >> <a href="Paper.aspx?BYID=449">交通安全管理</a></p> </div> </div> <div class="cl_right_middle"> <h1 id="ctl00_ContentPlaceHolder1_P_Title" class="cl_right_title">Analyzing Single-vehicle and Multi-vehicle Freeway Crashes with Unobserved Heterogeneity</h1> <p class="cl_right_shijian"> 发表时间：<label id="ctl00_ContentPlaceHolder1_Label_Date">2022/1/28</label> 阅读次数：<label id="ctl00_ContentPlaceHolder1_Label_ReadCount">3887</label> </p> <div id="ctl00_ContentPlaceHolder1_DIV_NeiRong" class="cl_right_message"><P>Abstract: Freeways in China have developed rapidly in recent years. The large traffic volumes and high travel speeds have created a serious safety problem that is of growing concern, however. Accurate identification of factors influencing crashes is a prerequisite for implementing countermeasures, but unobserved heterogeneity in crash data can lead to erroneous inferences. To identify key factors influencing crash occurrence, this study used two data preparation and modeling approaches to account for unobserved heterogeneity. First, freeway traffic crashes were divided into single-vehicle (SV) and multi-vehicle (MV) crashes because of their different mechanisms of occurrence. Second, random parameter modeling and finite mixture modeling were used, and were compared with regard to their ability to account for unobserved heterogeneity. The results indicated that the finite mixture negative binomial regression model with two components (FMNB-2) produced a better goodness-of-fit and parameter estimation. Results of the FMNB-2 SV and MV models’ classification of crashes into two homogeneous subgroups showed that for both SV and MV, crashes in Component 1 were most affected by roadway geometric features, while in Component 2, crashes were more strongly associated with traffic operational conditions. These findings will help traffic managers implement more targeted countermeasures for freeway safety improvement.</P><P>Mingjie Feng, Xuesong Wang, Yan Li. Analyzing Single-vehicle and Multi-vehicle Freeway Crashes with Unobserved Heterogeneity. Journal of Transportation Safety &Security, 2021. </P></div> <div class="cl_right_nextpre"> <ul id="ctl00_ContentPlaceHolder1_DIV_nextpre"><li> <a href="PaperContent.aspx?BYID=&ID=1341" >♦Effect of Daily Car-following Behaviors on Urban Roadway Rear-end Crashes and...</a></li><li> <a href="PaperContent.aspx?BYID=&ID=1343" >♦Transferability of Urban Arterial Safety Performance Functions Between Shangh...</a></li></ul> </div> </div> </div> </div> </div> <div id="bottom"> <p> ©CopyRight 2003-2012 同济大学交通运输工程学院 </p> <p> <script language="javascript" type="text/javascript" src="http://js.users.51.la/15629868.js"></script> <noscript> <a href="http://www.51.la/?15629868" target="_blank"> <img alt="我要啦免费统计" src="http://img.users.51.la/15629868.asp" style="border: none" /></a></noscript></p> <p> 备案号：<a href="https://beian.miit.gov.cn" target="_blank" style="color:#000">沪ICP备13005359号-1</a> <script type="text/javascript"> function checkRoot(user) { if (!user) { //window.parent.location.href = "index.html"; } } </script> </p> </div> </div> </form> </body> </html>