A Dynamic Traffic Assignment Model for the Sustainability of Pavement Performance

Xinhua Mao, Jianwei Wang, Changwei Yuan, Wei Yu and Jiahua Gan
Additional contact information
Xinhua Mao: School of Economics and Management, Chang’an University, Xi’an 710064, China
Jianwei Wang: School of Economics and Management, Chang’an University, Xi’an 710064, China
Changwei Yuan: School of Economics and Management, Chang’an University, Xi’an 710064, China
Wei Yu: Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Jiahua Gan: Transport Planning and Research Institute, Ministry of Transport, Beijing 100028, China

Sustainability, 2018, vol. 11, issue 1, 1-19

Abstract: Existing Dynamic Traffic Assignment (DTA) models assign traffic flow with the principle of travel time, which are easy to distribute most of the traffic flows on the shortest path. A serious unbalance of traffic flow in the network can speed up pavement deterioration of highways with heavy traffic, which influences the sustainability of pavement performance and increases maintenance expenditures. The purpose of this research is to obtain a more optimized traffic assignment for pavement damage reduction by establishing a multi-objective DTA model with the objectives of not only minimum travel time but minimum decline of Present Serviceability Index (PSI) for pavements. Then, teaching-learning-based optimization (TLBO) algorithm is utilized to solve the proposed model. Results of a case study indicate that a more balanced traffic flow assignment can be realized by the model, which can effectively reduce average PSI loss, save maintenance expenditures, extend pavement service life span, save fuel consumption and reduce pollutant emissions in spite of a little increase of average travel time. Additionally, sensitivity of weight factor for the two objective functions is analyzed. This research provides some insights on methods on sustainable pavement performance.

Keywords: sustainability of pavement performance; PSI; maintenance expenditures; pavement service life span; fuel consumption; pollutant emissions; travel time; DTA model; TLBO (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/2071-1050/11/1/170/pdf (application/pdf)
https://www.mdpi.com/2071-1050/11/1/170/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:11:y:2018:i:1:p:170-:d:194072

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().