Impact Of Rail Transit On Job Accessibility And Carbon Emissions Targets

In recent years, as urbanization and motorization continues to accelerate, leading to urban traffic congestion and environmental problems continue to worsen. In order to support the urban construction and development, ease urban traffic congestion, reduce urban traffic pollution on the environment, as a quick, low-carbon rail travel mode to get a better promotion, more and more cities to promote to develop rail transportation. Currently Rail traffic impact and benefit assessment focused on economic and passenger side, and this innovation to the city traffic forecasting model and employment accessibility model, carbon emissions model of integration, the two indicators from the employment accessibility and carbon emissions Research track construction and rail fares influence and effectiveness.Employment accessibility index as a measure of urban residents obtain employment difficulty, mainly reflected in the functional layout of urban space and transportation systems performance, and up to the side of the employment indicators also reflect the difficulty of the whole city commuter travel. In this paper, the layout of urban space given situation b y choosing employment accessibility indicators to assess the effect is to explore the impact of the construction of urban rail commuter traffic performance of rail construction benefit nature. Firstly, the travel distance and the administrative regional distribution characteristics of urban transport accessibility of employment after the completion of Xi’an Metro Line 2 and found that private transport and public transport accessibility of employment and increase with increasing distance to travel, increase rate showed a downward trend; and old City employment accessibility in different ways are the largest, followed by Yanta and Weiyang. Followed up by the regional distribution of employment changes before and after comparison Metro Line 2 construction, find the underground construction to a certain extent, improved the employment of private transport and public transport accessibility and accessibility impact on employment concentrated in the metro within the peripheral area; and finally explore find subway construction on the accessibility of public transport employment contribution is relatively large, reducing the public transport and private cars employment accessibility gap, thus contributing to the sustainable development of urban transport, and this promotion of Yanta District in Weiyang and is particularly evident.Carbon emissions as an important indicator to measure traffic pollution, to evaluate the degree of pollution from urban transport multi-dimensional space-time, carbon paper selected indicators to assess effectiveness and fares subway construction program, which sort of track construction program for urban transport fare reduction Contribution row. First produced from the area and the receiving carbon analysis of both the regional distribution of administrative Xi’an Metro Line 2 after the completion of urban transport carbon emissions and found Yanta District of Xi’an Weiyang and generate carbon emissions largest Old Town generate carbon emissions followed by the amount of discharge; beltway tricyclic carbon emissions bear the largest area, near the area of carbon emissions, followed by the second ring bear. Secondly, comparative analysis of regional produce track construction- to withstand changes in carbon emissions and found a large extent subway construction reduces transportation carbon emissions on regional produce- to withstand the impact of carbon emissions are concentrated in the surrounding metro lines, but on regional produce- bear different scope and extent of the impact of carbon emissions. Finally, we discuss the impact of carbon emissions fare found with a fixed carbon emissions and increase ticket prices, and the increase in the magnitude of the rise; and comparative analysis of the impact of the fixed fare zone fare system and system of carbon emissions, so as to Rail fares programming provides reference carbon emissions.In summary, this paper based on the redevelopment of urban transport model urban traffic forecasting model and employment accessibility model, carbon emissions model of integration, innovation from the employment accessibility and carbon emissions targets affect efficiency of rail transit construction explore, which is very important to recognize the value of the role of rail transport.