{"title":"Assessment of Measure of Effectiveness of Two-lane Roads Under Non-homogeneous Traffic Conditions","authors":"Gayani Rajapaksha, S. Bandara","doi":"10.1109/MERCon52712.2021.9525776","DOIUrl":null,"url":null,"abstract":"One aspect of measure of effectiveness of two-lane road is freedom of passing manoeuvre. Highway Capacity Manual (HCM) use percent time spent following (PTSF) as a measure to evaluate freedom of passing manoeuvre. Several researchers found that PTSF is incompatible with nonhomogeneous traffic conditions. Different follower-related performance measures, namely, percent followers (PF), follower density (FD) and the number of followers as a proportion of capacity (NFPC), Percent Impeded (PI), have been evaluated and a new measure called Stripped Based Follower Density (SFD) is introduced considering driving behavior of heterogeneous traffic condition. Data is collected from 12 two lane roads in Sri Lanka using a 2.5 second time gap suggested as driver perception -reaction time by AASSHTO to identify followers. LOS threshold values for SFD were introduced using K-mean clustering technique and compared with HCM LOS threshold.","PeriodicalId":6855,"journal":{"name":"2021 Moratuwa Engineering Research Conference (MERCon)","volume":"28 1","pages":"480-486"},"PeriodicalIF":0.0000,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 Moratuwa Engineering Research Conference (MERCon)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MERCon52712.2021.9525776","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
One aspect of measure of effectiveness of two-lane road is freedom of passing manoeuvre. Highway Capacity Manual (HCM) use percent time spent following (PTSF) as a measure to evaluate freedom of passing manoeuvre. Several researchers found that PTSF is incompatible with nonhomogeneous traffic conditions. Different follower-related performance measures, namely, percent followers (PF), follower density (FD) and the number of followers as a proportion of capacity (NFPC), Percent Impeded (PI), have been evaluated and a new measure called Stripped Based Follower Density (SFD) is introduced considering driving behavior of heterogeneous traffic condition. Data is collected from 12 two lane roads in Sri Lanka using a 2.5 second time gap suggested as driver perception -reaction time by AASSHTO to identify followers. LOS threshold values for SFD were introduced using K-mean clustering technique and compared with HCM LOS threshold.