Force Field Model for Motorcycle Microscopic Simulation under Mixed Traffic Flow on Urban Arterials
Date Issued
2014
Date
2014
Author(s)
Chen, Yu-Chen
Abstract
In Taiwan, it is very common to see motorcycles riding with cars on the same roads everywhere, which kind of traffic flow is called “mixed traffic flow”. Under this kind of traffic flow, the interaction between different types of vehicles is very complicated, which often causes traffic congestion. In addition, the increasing quantity of motorcycle has already caused severe traffic problems in Taiwan. Over the past decade, we had been introduced many foreign microscopic traffic simulation software to assess transportation improvement programs; however, these foreign simulation software faced the same problem on efficiently presenting the characteristics of mixed traffic flow, which commonly happened in Taiwan. In order to solve this problem, it is a must to construct the software, which sets with mixed traffic microscopic traffic characteristics. Constructing the microscopic traffic simulation models based on this condition is the important part before starting to design the software.
The behaviors of motorcycle forwarding are the most complicated in the microscopic traffic simulation models of the mixed traffic flow. Not only the longitudinal effects are needed to be considered, but also the lateral effects should be taken into consideration for the high mobility of motorcycles. Also, when a motorcycle rides on the road, it has no lane line restriction like a car that has to drive in the lanes. Since the lateral movements between motorcycles and vehicles are very different, the behavior of motorcycles cannot just be separated into the two: car-following and lane-changing behavior
In order to describe those complex behaviors, this study took vehicles as atoms with different sizes, described the interactions between motorcycles and other vehicles under the model of non-lane force field. Also, we consider the impact of different types of vehicles and construct the behaviors of motorcycles as interacting between other vehicles.
From the model validation in this study, it can be confirmed that this model can predict the behavior of motorcycles, and show the movements such as swerving and deceleration when motorcycles influenced by other vehicles. From the microscopic validation, this can be known that the model can precisely predict the direction of travel, and is able to rebuild the behaviors of motorcycles such as ‘crossing’ and ‘drilling’. From the view of macroscopic validation, the interaction mode between vehicles accords to the moving characteristics of motorcycles in the mixed traffic flow. Knowing that all validation items can pass the statistical test, this model has a high level of ability of explanation.
By using the ability of explanation of this model to construct micro-simulation software for the mixed traffic flow in Taiwan, we can make it meet the real environment. Also, this can provide traffic engineering for improving the current traffic situation in Taiwan, and make the in Taiwan traffic run much smoothly.
Subjects
微觀車流模擬
混合車流
力場模式
社會力
無車道模式
機車
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-103-R01521520-1.pdf
Size
23.32 KB
Format
Adobe PDF
Checksum
(MD5):106ff626e6158687976b75e2bcf02b4d