Research on Traffic Congestion Based on System Dynamics: The Case of Chongqing, China

Abstract

With the rapid development of society, urban traffic congestion has gradually become an important social problem that many cities need to solve. For Chongqing, traffic congestion not only affects residents’ normal travel but also brings more serious environmental pollution. Aiming at the problem of urban traffic congestion and automobile exhaust pollution, this paper adopts the system dynamics method to establish a model for studying urban traffic congestion system from the perspectives of private cars, trucks, and public transportation. First, we determine city motor vehicle trips as an indicator of the degree of traffic congestion in this paper. Second, we analyze the causal relationship between the growth of private cars, the travel of trucks, public transportation, population, and other factors and then build a model and test the stability of the model. Then, we add some practical policies to the model for policy analysis. Finally, it is concluded that the private car restriction policy is effective in controlling the amount of private car travel, and the purchase restriction policy controls the growth of the number of private cars from the root cause, but the development of public transportation is the most effective treatment measure in the long run.

Rebalancing Strategy for Bike-Sharing Systems Based on the Model of Level of Detail

“…Although this work has achieved considerable results, some shortcomings are also noted. (1) In establishing the model, the length of the time window is set to a fixed value. We did not discuss the setting of this value in detail.…”

“…e issue of traffic congestion is becoming increasingly serious with the increase in the number of motor vehicles in urban areas [1]. is situation has become a major problem in the development of modern cities.…”

Establishment and Analysis of Four-degree-freedom Dynamic Model Considering Lateral Tilt

“…Based on a typical three-degree-of-freedom vehicle model, Wang Xianbin [4][5][6] et al established a non-linear model of a vehicle with five degrees of freedom by fully considering the role of wheel driving force and driving moment on the vehicle system, and verified the accuracy and validity of the non-linear model of a vehicle with five degrees of freedom under steady-state and unstable conditions, and analysed the influence of the longitudinal slip rate of tyres on the vehicle motion system. Su Zhoucheng [7] and others developed a model of a vehicle with eight degrees of freedom including longitudinal motion, lateral motion, transverse body motion, lateral tilt and rotation of the four wheels, which more realistically reflected the vehicle turning and braking conditions. Although the model more accurately describes the lateral and longitudinal motion of the vehicle, it lacks consideration of the effects of air and tyre rolling resistance for the sake of computational simplicity, so the model is not suitable for the study of vehicle dynamics under high-speed steering conditions.…”

Impact of traffic congestion on road users in Tangerang City

“…Kadarisman et al (2017) explained, one of the negative impacts due to transportation problems is congestion which causes quite high air pollution and also hampers people's economic activities. Traffic congestion in urban areas is gradually becoming an important social problem and needs to be addressed (Su et al, 2020) because congestion is a very detrimental situation that has social and economic impacts (Hidayat & H, 2017). Kawulur et al, (2020) explained that traffic congestion occurs due to an imbalance between the number of residents, the number of vehicles and the available roads.…”