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Metro system is one of the most important modes of transportation to relieve traffic congestion. Passenger emergency evacuation in metro stations is a key issue in safety management due to heavily overcrowded population and the complexity of underground spatial environment. This paper combines desired speed, visibility condition, and some key station facilities usage state, and analyses passenger...
The paper analyzes the concept, elements and data structure of the multi-mode transportation network, proposes a polycentric hierarchy description model of the integrated transportation network, and discusses the construction method of multi-mode transportation network using GIS technology. The design of system function modules provides a visual edition platform to realize the construction of integrated...
Based on the previous research, this paper presents a parameterized congestion pricing schemes with user's behavior characterized by the theory of stochastic users' equilibrium. The congestion pricing schemes is considered as a game between road users and administrator, and each player has the optimal objectives. Therefore, a bi-level program is employed with the upper-level evaluating of proximity...
The traffic and transportation system is in a reciprocity relationship with the society and economic development. The transportation demand increases not exactly according to the history trend in the background of huge-changed development strategy, the main carriers of which are three including gross product, government revenue and population. The multiple nonlinear prediction model is established...
The traffic flow information guidance (TFIG) can adjust the road load of regional traffic. Based on TFIG model and example of the region at the Southwest Second Ring of Beijing constructed by six roads, including three heavy traffic roads, and six intersections, we focus on the left-turn traffic jam in southbound of I.A and propose the TFIG measures to guide part of them to branch roads: R.4 and/or...
The conflicts between traffic entities play an important role in reducing traffic efficiency. The delays from conflicts that exist between vehicles or vehicles and pedestrians are often ignored when a time-cost function is employed into route choice models in a traditional path-based traffic assignment. A lane-based network model is developed to depict the conflicts leading to the deceleration of...
In traffic micro-simulation research field, with the transportation network and number of vehicle growing, simulation with a single computer is getting more and more difficult even impossible. However, grid-based computer cluster technology is becoming one of the most suitable solutions to this kind of problem. In this article, we are going to introduce the achievements of grid-based technology in...
This paper presents a continuous simulation-based model for mixed traffic flow between motor and non-motor vehicles at intersections in major cities in China. Not like in developed countries, conflict points and rule-less of mixed flow in intersection, which greatly impaired the traffic capacity, is the major traffic issues at the intersections in China, Therefore, we introduce a conflict-point detection...
Left-turn waiting area can improve the capacity and operational efficiency of the isolated signalized intersection. Based on the former researches and survey data, in this paper, we model the left-turn waiting area by dint of stop lines A, B and its length lAB, and parameters of left-turn signal, t1 ,t2 ,t3, t3. According to the flow chart and taking advantage of simulation software VISSIM, we emulate...
Taxi, by providing flexible and convenient service, becomes one of the most importation modes of passenger transport. However, the increasing popular of taxi has brought several problems to urban traffic. The current study is to explore the characteristics and safety of taxi lane changing behavior on urban road. The initial collected data provide evidence that taxis are more frequently to change lanes...
The paper analyses the factors of influencing the freight corridors competitiveness such as punctuality, operating speed, convenience and freight rate etc. And then, we propose competitiveness model of freight corridor by improving the Logit method. And we take a coal transportation corridor of western as a case to study the competitiveness between the road and rail. Finally, we make a elasticity...
Variable message signs (VMS) plays an important role in route guidance of drivers and release of traffic congestion. Response to VMS of drivers is acquired in stated preference (SP) investigation. Traffic demand is estimated and analyzed by Gravity and route choice models. Effects of VMS on route choice and traffic delay are simulated through VISSIM software in the case study of Beijing.
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