CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'managed',cRay: '9197db86ab21601b',cH: 'TYppqW3dSJn9fG1oAdtffbS6i_dkjErftZH9wzxKaMk-1740823752-1.2.1.1-owO8NMDmcP96ngO4UXm52tpK633pJ3_wO1byX2hp_LnsgcC2a_Q0x2dY2h7kqQJf',cUPMDTk: "\/search?q=speeding&__cf_chl_tk=X27S5vsvWKrqepKKXTtoqIdW95PkFZ34kXkMXI9lag8-1740823752-1.0.1.1-G1McNCRZfobeP4vCFfV8AvSUwExKIacQUltAtYNtj1M",cFPWv: 'b',cITimeS: '1740823752',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/search?q=speeding&__cf_chl_f_tk=X27S5vsvWKrqepKKXTtoqIdW95PkFZ34kXkMXI9lag8-1740823752-1.0.1.1-G1McNCRZfobeP4vCFfV8AvSUwExKIacQUltAtYNtj1M",md: "tokjrHS45PIKqWhwc2xuFFt01tniP55NRKAXn3yOVQM-1740823752-1.2.1.1-RhIg2O4KntllClLg2L6lPtXXzbbY4ha5JmVl5V1Z4Fy0BUJVxgo8cU79YHx36mqxCNRdz0D5YEUFC1y7Rfr_.CNmCqtFitYLAuSO6KPDLfa4yoqBcafeoj6nfDKNZhG8DKkH3RmfrKK0uLHR3UjquS4BDIGXai53o0qQgndaExgnNRogc2H7Lv4DGRMcejkC6o4RiasAyGiHDJIx4UB1S3eLPL8Vv2YNGW2KLl.h8z5uGvfjt.CN_q9g.zcgl1XH9igUmLjzMtwAn9LcRKyPPP7WCaWX6skyW.7jVYcpkdZN4JAitsCHVW7cjVdTFqjGUwlFzcBoeyKTfYntt7ummE7wngnq4awuBj0vKKseIqWMCtnG78Jp_M7iCqJhfe2olHd.j2j8akIdQdTs2pbJTJS3WXPyvBrZ5hn1KPclXTBSztHDMiu2MpsiktRPY4p1OFRV7FVBrozRga1Cz7Nw6Lo8GrEdvxUymblXKzVQ7Gaztpd5kYFSjR_kU9X78v1JC6bzwQtKj4.EG3xdzbPPTgjxnIr7exgcVb9DaRS482VBPjTQyEg0nHs8Xude_HoGn4wXZ.r4lRecE6irTUmAx8EW9t8Gewg_dQNUeaEdyJPjcZQCHe5J12Innrm.ock0MoszHULZCoig2YvlBnKM.dspv2kpr3.q0KEJ3_.yDfHdGbtR9JHwziZ7fYV_0n5h22_gDG_qIxRQXdy2BXpx0RB1iua6nlX2zBPmfCXLU.GKxgC89do_LQcCLhPLEzfoyL8IXq.qavxpzsj2LHwf5jmCFKFjV6jM7bM5EI1PgSm4mXKpaVNpYc2988D0uzr7eHDfPTc6unELdK.fw355a2KMsTBrRjulKlbU5r4y_7E4RHNZiwXjKgjhDm4TsFKa8WyrX4s1mTI7U0lGonNVJ9QKrQ4BqJYmce_A.S6qzn_Fla3WZYASOCuFSevj3pCO1C3Bc4yIXKSCLM96vpRADXg5eYUnqasQ9txgLS5qWB_nJUGqoEAqHniXMolXQc1LcX4550nr3e9DbYXkm1rpDt8HsjQbSRwGVLfUl5qNcqA_QUcZwn1wxlOQnuwDyiiwpbsAipftxXZlnfmYiCTmRM9to.oP65DlLojAMLsA3f5y2hEv13vpJJA7.Umzo6R20B5rRVvtfUyY4p75_2PGk2JrVrQ4mEGSg4bPq5.W8WGSHJPCNxm4pP6EP4JYI23DbDGtkcbl5nSSLZZFf2iu56wy8m4v90axyPT4d4IgMB8",mdrd: "6n89L5mczZatgX0TTWbYmmnFlywP8KytUMFb0k1leno-1740823752-1.2.1.1-xj.hZUuHrD91mcMKcawIw4GiVFN8yJTXa0FQUb7g6YqWP01EZcCFWThI_ejvTQ4WLKNHornkC9dGXWHlsBmtXyCfnc1DEma3ZOwhtq8gAgaUJdvvJuqUFTfnc4McCtEckiSYOCASNjZWhr9sJ5SdzV3UVwYoZG7riNYFuweppAA.2umMUDPMdBazySSWDisQpNRmST42Uth1J96X28WEhPQ.9AyO1GA7Y9EmRGri4qMQTjs2lY.LBdc5SghG1DQs8LZtxen3ubv18FeTwxGmvtfu5a1ViOYAReYPXXrNHlZitHPZ_WHSbyfESJQvpXu0y2.1mPQ.1owvdpxyJx8Y8Z9ucL9Onx8cOY2x_.A2eYPZZGiW6aRXR4P7wf4LxEaXVyNPJd6mMNID_4QJLTS3DIoRsvhgxdvPTjtW3Ygqs_rhSQJBwNP0IyhT0DH1uX1bRqsSZm7Fwho6.GeScYoB8rx.Cr1m1FMb307Y1kuTEFyKEsXvel6Arg4EPt9eJncUhwcSpBdw8XEMAtXl.Q7nihQTQ9Jlh4.TF4rv6NCnGbRMn2laajvl4xjf.b5tlJpAsBhlfecaWVX1nh8cizWGEqUy8jBk14XHOhsbcZWTnjwqgiQpAvDCW8axX97n3Omz3qgPzxfu_TsCFF3ztuXBSTY0BtsLrNxLwWF.qoESMCI8XXAzuktRFv87Scgy7.HLtHEFw4vMzhIXDd2kTI2RTq6mU.N5ZHMHCNmHvbLn9b13fR2azcG6DVqDu6BzKoENP8cauAh7b_W4Ig4SvDBy.ZXjuEeXZmkZNL7fC1kuzycBVoXSK4v50Dx2DEiD6oUmWDldJwivGfVElOhGA158j0vOcm1C7U4lHpI1gvz7EbHmiR7YjjMW2_.0LxRfqWsp0yN.KGqwfJVnD4gXuUwLxyrBBZUy.mS5vyKNZXEmUWWtBXD7NnYSrp2Wmie6pdWGNH5LOOaYZQEESucQnpqYttK8F6Z1M9UMqsp7X_AiAnd7vxzrtAPaIPBSH_xlniWX3pBNz4Uqe_skvk52b9iwGBbLk7.2q8bpwbHayfnoF0PhQJwpdl9zLA3hujQKGUJafIDks3_d13YzmAXa2a_GZe38VWknzV6s9DXPPEouQoLNxCatOEYXF0ZoNb6j6D6_ANnMIf0PAohWOo1HH77q24AIrRtM8AxyAKzwazaYRmz3areNOGKZHsVya18ySA4yRhiK7h0RZW8rvfQCqm8PNd7vwXCxtElrEyk2xNVKL3OHXOUrJWFn_SUDfloGJKo8dSNhrh.bA.ko3NehlXlNOScLsVGFis8q2j83NrByo4PYH_m1WTTGUMOlBzKzPm2BqQDO2zV6j63m2EljxOj7bNNI1I606X6OsGSWfmLI7f94ktyVWBxMLI2BlduR1MBEUFYXQZn3WVcYjdHhe6.cakKCn2EBNjUXpC_ZFtzKZZpo_v2XJE5m0tGemg_6kHjyV9tfBzBxaEQaLvbIoLMa2XUEVhjZKiZyW2KjqvcTX6r0E2QO0jyX1W60SQJii0rXQZ7sCK7NzD42COcQy2tR25kAtnfjONaaPkIa_es6txhzzQWfZgoSUvHmN0Lao9NG_l_sZ7PbAR8GwFgwXY5Tn4o6L4VSRfdiPPW6aQKXUlO68_yzm3tSOU4NK8._wmMCw_ci6XFo4uho64EYEysoKaV73eQMkOfiPlvfr_ln94ljuLMyuE1Q2jyGZ2lcKhdolJLVs0d0gQaqrXxO9GIpqqHSNt7zg7yrq2XImt3pyUuRCvjK5PJwQem6Wppe3uBgdQLAmsUfAAR1sVveFWU6j5W5yEnSgmUFhlHCLNWfgTjAJyeiOQZkLzBFZq5WS2kJg0BjuFL7FcPrN082nWYoIA7uSPtoo.WdPV.TcsaU91fzvF.hxuW0INAz5eE2LzSDFpKh9zMkijLT3c3VBra17iVsPprxI9o_S42O3AyYgEY2Dn_dm1CrFTyRsFCWy8QIZ1bPdGDRzZ87ULLspcleMA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9197db86ab21601b';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/search?q=speeding&__cf_chl_rt_tk=X27S5vsvWKrqepKKXTtoqIdW95PkFZ34kXkMXI9lag8-1740823752-1.0.1.1-G1McNCRZfobeP4vCFfV8AvSUwExKIacQUltAtYNtj1M" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>