Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 1
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

Safety Performance Functions and Crash Modification Factors are statistically-based prediction methods that require significant efforts and long periods in crash data collection. Traffic conflict studies can mitigate this issue using a short time survey to measure the number and severity of traffic conflicts, which are regarded as surrogate safety measures. Unfortunately, they are empirical studies that can be carried out only after the implementation of a treatment. The overall objective of the present research is to investigate the performance of different methods for conflict detection and classification, considering the observed conflicts on 2+1 roads in Poland. Observations were compared with conflicts detected in simulated environments. The latter include either the Agent-Based Microsimulation (ABM) approach, or the virtual reality simulation using a Driving Simulator (DS). Conflicts were detected and classified based on video recording and analysis of vehicle trajectories in the merging area of 2+1 roads. The studies focused only on lane-changing conflicts. Locations, Post Encroachment Time and Time to Collision values of observed conflicts between vehicles were subsequently identified. Observed conflicts were compared with the ones resulting from ABM and DS, to determine whether there is a correlation between them.
Go to article

Authors and Affiliations

Salvatore Cafiso
1
ORCID: ORCID
Alessandro Calvi
2
Carmelo D'Agostino
3
Mariusz Kieć
4
Gianmarco Petrucci
5
Piotr Szagała
6

  1. University of Catania, Department of Civil Engineering & Architecture, Via Santa Sofia 64, I-95125 Catania, Italy
  2. Roma Tre University, Department of Engineering, Via Vito Volterra 62, I-00146 Rome, Italy
  3. Lund University, Department of Technology and Society, John Ericssons väg 1, 223 63 Lund, Sweden
  4. Cracow University of Technology, Faculty of Civil Engineering, 24 Warszawska Str., 31-155 Cracow, Poland
  5. Donati S.p.A., via Aurelia Antica 272, I-00165 Rome, Italy
  6. Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, Poland

This page uses 'cookies'. Learn more