Revisiting the Task-Capability interface model for incorporating human factors into car-following models

Saifuzzaman, Mohammad, Zheng, Zuduo, Haque, Md. Mazharul, & Washington, Simon (2015) Revisiting the Task-Capability interface model for incorporating human factors into car-following models. Transportation Research Part B: Methodological, 82, pp. 1-19.

[img] Accepted Version (PDF 1MB)
Administrators only until December 2018 | Request a copy from author

View at publisher


Human factors such as distraction, fatigue, alcohol and drug use are generally ignored in car-following (CF) models. Such ignorance overestimates driver capability and leads to most CF models’ inability in realistically explaining human driving behaviors. This paper proposes a novel car-following modeling framework by introducing the difficulty of driving task measured as the dynamic interaction between driving task demand and driver capability. Task difficulty is formulated based on the famous Task Capability Interface (TCI) model, which explains the motivations behind driver’s decision making. The proposed method is applied to enhance two popular CF models: Gipps’ model and IDM, and named as TDGipps and TDIDM respectively. The behavioral soundness of TDGipps and TDIDM are discussed and their stabilities are analyzed. Moreover, the enhanced models are calibrated with the vehicle trajectory data, and validated to explain both regular and human factor influenced CF behavior (which is distraction caused by hand-held mobile phone conversation in this paper). Both the models show better performance than their predecessors, especially in presence of human factors.

Impact and interest:

2 citations in Scopus
Search Google Scholar™
2 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 87635
Item Type: Journal Article
Refereed: Yes
Keywords: car-following, driver capability, task difficulty, task demand, human factors, Gipps’ model, IDM
DOI: 10.1016/j.trb.2015.09.011
ISSN: 0191-2615
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 Elsevier
Copyright Statement: Licensed under the Creative Commons Attribution; Non-Commercial; No-Derivatives 4.0 International. DOI:
Deposited On: 22 Sep 2015 23:19
Last Modified: 10 Jun 2016 11:01

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page