Crash surrogate measures for mixed traffic flow

C. H. Liao, Yen Yu Chen, Ka-Io Wong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Due to the high mobility and convenience, scooters are popular in some developing cities especially in Asia. However, motorcycles have major safety concerns since the vehicle does not provide any protection to riders during a crash. Using crash surrogates on safety analysis is emerging in the past decade, but previous studies focused on safety studies of automobiles. This study is to investigate for an appropriate crash surrogate measure for mixed traffic flow with scooters in urban arterials. The widely used time-based surrogate, time-to-collision (TTC), is considered. Using a vehicle trajectory dataset collected in Taipei, Taiwan, the results show that the potential crashes identified with TTC are reasonable and a good representation of the observations.

Original languageEnglish
Title of host publicationProceedings of the 20th International Conference of Hong Kong Society for Transportation Studies, HKSTS 2015
Subtitle of host publicationUrban Transport Analytics
EditorsSylvia Y. He, Yong-Hong Kuo, C.H. Cheng, Janny M.Y. Leung
PublisherHong Kong Society for Transportation Studies Limited
Pages28-34
Number of pages7
ISBN (Electronic)9789881581440
StatePublished - Dec 2015
Event20th International Conference of Hong Kong Society for Transportation Studies: Urban Transport Analytics, HKSTS 2015 - Hong Kong, Hong Kong
Duration: 12 Dec 201514 Dec 2015

Publication series

NameProceedings of the 20th International Conference of Hong Kong Society for Transportation Studies, HKSTS 2015: Urban Transport Analytics

Conference

Conference20th International Conference of Hong Kong Society for Transportation Studies: Urban Transport Analytics, HKSTS 2015
Country/TerritoryHong Kong
CityHong Kong
Period12/12/1514/12/15

Keywords

  • Crash surrogates
  • Mixed traffic flow
  • Scooters
  • Time-to-collision
  • Traffic conflicts

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