The Study Of Wuhan Jinyintan Subway Station Construction Zone Traffic Flow Characteristics

In twenty-first Century Chinese is in the development period of vigorous, people’s quality of life improved significantly, road construction thriving. City traffic problems further highlights, in order to address the growing tension of road traffic problems, large and medium-sized cities are actively building the subway. Subway station road construction problems in the process of construction seriously, increase the original road transportation congestion serious pressure. The study of subway construction area traffic flow characteristics, summarize the characteristics of traffic flow, take a series of measures to solve the problem of congestion, helps to ease the tension in subway construction area traffic, reduce the adverse effect brought by the subway construction on traffic safety.Firstly to discrete dynamics model as the basis, for during the construction of Wuhan City, gold and Silver Lake subway station of city Zhandao construction, the impact of road traffic as the object of study, establish a suitable model for studying in Wuhan city of gold and Silver Lake subway station, through the establishment of model simulated the Jinyintan subway station construction period, the construction area occupying road construction on the impact of traffic flow, namely traffic flow characteristics.In this paper, Wuhan Metro Line 2 subway station Jinyintan construction zone for the study, the construction segment has bus stops, next pending the construction of residential areas, bus stops need to consider the added time and heavy cargo trucks. Within a certain time period to heavy trucks or buses stop adding too much for too long will lead to traffic jams. Specific model: The road into the L Cellular, each cell has three states: there is a car with a cart, no car. Speed of the vehicle also has three states: zero speed, the speed is a speed of 2.As the main object of this study is the traffic flow characteristics Jinyintan subway station under construction zone lane construction conditions, so the choice is the traffic flow model. In the last century, the study of foreign experts in similar situations to take a lot of traffic flow model, and this paper is to take a similar study of discrete dynamics model. Discrete dynamical model is a new model of traffic flow on the end of the century more prevalent in the study of discrete dynamics model in which the three elements of space, time, states are relatively isolated. And various factors discrete dynamics are relatively independent, smaller force interaction. In the case of computer modeled after a simple definition of factors, simulation efficiency is very fast, and can regulate strong, easy to use and flexible response is really a variety of effects.Secondly, through the investigation of the field traffic in the subway station, the paper gets the actual traffic flow characteristics through data investigation and the data import to the model.. Summarizes the full text, Jinyintan subway station traffic flow characteristics from the angle of the elements of traffic flow, to start can be summarized into three points: i.e., the driving speed, the subway station construction area of the driving speed to less than the driving speed of the normal section; traffic density, during the construction of urban subway, subway construction area traffic density greater than the rest of the normal section; traffic, due to the construction of Subway Station District lane construction, construction area of traffic compared to the normal section of less traffic.According Jinyintan construction area subway station survey data analysis, random parking probability Jinyintan subway construction area is probably about 0.12, and the random parking probability normal sections is about 0.025, visible construction area still has some influence on the road capacity of. Traffic congestion degree of Jinyintan subway construction area is here relevant probability random parking, random parking probability is smaller, the better the traffic flow on the road running, with the increase of random probability of road traffic congestion with its increased level would rise. Only reduce the size of random road parking probability, can effectively reduce road congestion in the traffic flow.Through the analysis of the traffic flow characteristics, the influence of the metro construction area of the gold and silver Tan subway on the surrounding living environment and the solution to the similar problems are obtained.. In the paper, the measures to solve the traffic jam in the metro construction zone of the gold and silver Tan metro are proposed through the research of the traffic route control, the vehicle control and the pedestrian flow.Summarize the following measures: 1, number of lanes combined traffic forecasting results, refer to "highway capacity research"(Ministry of Transportation Highway Research Institute) calculates the section capacity, and determine access road construction to meet basic needs. 2, the construction area for the re-intersection signal lights with the design. 3, construction sites all vehicles all the T-junction turn left in front of the crossing process, while reducing the vehicle speed to ensure safety. Crossroads turn left and all vehicles banned, in front of the crossing traffic.And take a series of technical safeguards, organizational assurance measures. Such as the establishment of traffic coordination management group, configure traffic wardens, configure temporary facilities, and reasonable arrangements for construction vehicles.