Traffic conflicts analyses for 2+1 road sections
Authors:
- Salvatore Cafiso,
- Carmelo D'Agostino,
- Radosław Bąk,
- Mariusz Kieć
Abstract
The additional passing lanes and 2+1 roads improve significant road safety. Studies indicate sections with additional passing lanes (relief or alternately), which may cause reduction in the number of accidents by 50%. However, how geometric design affects the safety performance of such sections is not in depth investigated. Previous studies are carried out with two approaches, i.e. the most often, based on analysis of observed crashes and more rarely by using microsimulation study. In the case of microsimulation research, traffic conflict theory can be applied as a surrogate measure of safety. One of the main problem in simulated conflicts study is the validation of simulation results against real world conditions. The aim of the paper is to assess the reliability of traffic conflict measures obtained by microsimulation against real world observation. Conflicts were detected and classified from video recording and analysis of vehicle trajectories in the merging area on 2+1 roads in Poland. Conducted studies focus only on lane changing conflicts, locations and TTCs values of observed conflicts between vehicles were primarily identified. Observed conflicts are than compared with microsimulated one, to assess if there is a correlation in the two.
- Record ID
- CUT3c614ba9305a41bf8ef8f0a7308cbd72
- Publication categories
- ; ;
- Author
- Journal series
- MATEC Web of Conferences, ISSN , e-ISSN 2261-236X, Irregular
- Issue year
- 2018
- Vol
- 231
- Pages
- [1-9]
- Article number
- 01006
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 7-9; Bibliografia (liczba pozycji) - 22; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 231
- Substantive notes
- Section: Safe road infrastructure
- Conference
- 12th International Road Safety Conference GAMBIT 2018 – "Road Innovations for Safety – The National and Regional Perspective", 2018, 12-04-2018 - 13-04-2018, Gdańsk, Polska
- Keywords in English
- 2+1 road, traffic conflict, surrogate safety measure, video observation, SSAM, TTC
- DOI
- DOI:10.1051/matecconf/201823101006 Opening in a new tab
- URL
- https://www.matec-conferences.org/articles/matecconf/abs/2018/90/matecconf_gambit2018_01006/matecconf_gambit2018_01006.html Opening in a new tab
- Related project
- Efektywność przekroju 2+1 pasowego ze szczególnym uwzględnieniem różnych rozwiązań rozdzielających kierunki ruchu. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 15
- Additional fields
- Indeksowana w: Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT3c614ba9305a41bf8ef8f0a7308cbd72/
- URN
urn:pkr-prod:CUT3c614ba9305a41bf8ef8f0a7308cbd72
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.