Proposal for the Use of a New Parameter in the Composite Road Traffic Model

CAR2017 International Congress of Automotive and Transport Engineering - Mobility Engineering and Environment

工业技术;运输工程

Boroiu, A.^1 ; Tabacu, I.^1 ; Boroiu, A.A.^1 ; Neagu, E.^1 ; Vieru, I.^1

Automotive and Transports Department, University of Pitesti, 1, Targul din Vale Street, Pitesti

110040, Romania^1

关键词: Comparative analysis;    Limit values;    Maximum flows;    Minimum distance;    New parameters;    Non-homogeneous;    Operating speed;    Vehicle braking;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/252/1/012055/pdf
DOI  :  10.1088/1757-899X/252/1/012055

学科分类：工业工程学

来源: IOP

【 摘 要 】

Comparative analysis of the models used in the literature for the fundamental traffic diagram reveals that the improvement of these models can only be achieved by taking into account the vehicle tracking models. Given that it is of great interest to model the relation between density and speed, to identify the conditions in which maximum flow can be achieved with a high operating speed and safely. For the non-homogeneous traffic, met in our country due to the lack of highways, the model describing the minimum range of vehicles was developed based on the relation of the minimum distance between vehicles taking into account the difference between the vehicle braking modes. Finally it is explained the maximum volume of traffic according to a parameter that includes the decelerations of the two vehicles, which determined the proposed use of this new concept in road traffic theory. This has made it possible to conclude that in the case of non-homogeneous traffic the volume increases only to a certain speed value, then decreases, while in the case of homogeneous traffic the volume continues to increase to a limit value. The paper argues the necessity of using this new parameter for road traffic models.