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04949aam a2200697Ic 4500 001 F2B1F036B7CA11EC864CB83724ECA4DB 003 SILO 005 20220409010100 008 150128s2014 iauabdofsbt s000 0 eng d 035 $a (OCoLC)900899086 040 $a UIG $b eng $e rda $c UIG $d SILO 088 $a InTrans Project 12-370 088 $a Iowa DOT project SPR RB01-012 088 $a MATC WBS: 25-1121-0003-137 100 1 $a Hans, Zachary $e author $u Iowa State University 245 10 $a Safety and Mobility Impacts of Winter Weather --Phase 3 $c Zachary Hans, Konstantina Gkritza, Mohammad Shaheed, and Inya Nlenanya. 264 1 $a Ames, Iowa $b Institute for Transportation, Iowa State University $c 2014 300 $a xiv, 67 pages (86 pages in PDF file) $b Illustrations, (chiefly color) 500 $a "September 2014" -- Technical Report Documentation Page 504 $a Includes bibliographical references (pages 65-67) 513 $a Final report. 520 3 $a Highway agencies spend millions of dollars to ensure safe and efficient winter travel. However, the effectiveness of winter-weather maintenance practices on safety and mobility are somewhat difficult to quantify. Safety and Mobility Impacts of Winter Weather - Phase 1 investigated opportunities for improving traffic safety on state-maintained roads in Iowa during winter-weather conditions. In Phase 2, three Iowa Department of Transportation (DOT) high-priority sites were evaluated and realistic maintenance and operations mitigation strategies were also identified. In this project, site prioritization techniques for identifying roadway segments with the potential for safety improvements related to winter-weather crashes, were developed through traditional naive statistical methods by using raw crash data for seven winter seasons and previously developed metrics. Additionally, crash frequency models were developed using integrated crash data for four winter seasons, with the objective of identifying factors that affect crash frequency during winter seasons and screening roadway segments using the empirical Bayes technique. Based on these prioritization techniques, 11 sites were identified and analyzed in conjunction with input from Iowa DOT district maintenance managers and snowplow operators and the Iowa DOT Road Weather Information System (RWIS) coordinator. 536 $a Sponsored by the Iowa Department of Transportation $c Iowa DOT SPR RB01-012 536 $a Performed by Iowa State University, Institute for Transportation $c InTrans Project 12-370 536 $a Sponsored by Mid-American Transportation Center 536 $a Sponsored by Federal Highway Administration, U.S. DOT Research and Innovative Technology Administration 516 $a Text file in PDF format. 538 $a System requirements: Adobe Acrobat Reader, Adobe Acrobat, or other PDF reader. 538 $a Mode of access: World Wide Web 650 0 $a Roads $x Snow and ice control $z Iowa. 651 0 $a Interstate 80. 651 0 $a Interstate 35. 650 7 $a Accident prone locations $2 trt 650 7 $a Crash risk forecasting $2 trt 650 0 $a Traffic safety. 650 07 $a Highway safety $2 trt 650 07 $a Interstate highways $2 trt 650 07 $a Mobility $2 trt 650 07 $a Performance measurement $2 trt 650 07 $a Traffic safety $2 trt 650 07 $a Weather conditions $2 trt 650 07 $a Winter $2 trt 650 07 $a Winter maintenance $2 trt 651 0 $a Iowa. 700 1 $a Nlenanya, Inya $e author $u Iowa State University 700 1 $a Hawkins, Neal $e author $u Iowa State University 700 1 $a Gkritza, Konstantina $e author $u Iowa State University 700 1 $a Shaheed, Mohammad $e author $u Iowa State University 710 2 $a Iowa State University. $b Center for Transportation Research and Education, $b Center for Transportation Research and Education, $e performing body. 710 1 $a Iowa. $b Department of Transportation, $e sponsoring body. 710 2 $a Mid America Transportation Center, $e sponsoring body. 710 1 $a United States. $b Research and Innovative Technology Administration, $b Research and Innovative Technology Administration, $e sponsoring body. 710 1 $a United States. $b Federal Highway Administration, $e sponsoring body. 856 40 $a Iowa Publications Online $3 Online access. $z Full report $u http://publications.iowa.gov/id/eprint/18670 856 42 $a Iowa Publications Online $3 Online access. $z Tech transfer summary $u http://publications.iowa.gov/id/eprint/18670 856 40 $a Digital Repository @ Iowa State University $3 Online access. $z Full report $u http://lib.dr.iastate.edu/intrans_reports/82/ 856 42 $a Digital Repository @ Iowa State University $3 Online access. $z Tech Transfer summary $u http://lib.dr.iastate.edu/intrans_techtransfer/44/ 941 $a 1 952 $l IAOX771 $d 20240710103024.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=F2B1F036B7CA11EC864CB83724ECA4DB 994 $a C0 $b UIGInitiate Another SILO Locator Search