| As the urban transportations in the world become worse, it is a wise decision to develop public transportation and to carry out the'transit first'policy in our modern urban transportation development. Public transportation priority development included priority policy, passenger management, infrastructure and priority technology, which is an enormous system of urban management. The thesis studied technology guidance to urban public transportation development of Hunan province, in order to improve the whole benefit of infrastructure and guarantee urban sustainable development.Firstly, public transportation development condition was investigated in eight cities of Hunan province which were chose according to the city's area and population. Analyzing the investigable result, some problems were discovered in planning bus network, construction of bus station, bus parking and maintenance site, the system of bus dispatching and bus facility and construction of bus lane. Secondly, the technology guidance or improvement proposal was suggested on the basis of public transportation condition of Hunan province.Afterwards, the specialized study of signal intersection priority was conducted. Categories of signal intersection priority were introduced. Bus priority of intersection using pre-signal was studied in theory method. Traffic simulation technology is used to study bus priority of intersection using pre-signal. By means of Traffic Software Intergrated System (TSIS) to study pre-signal control strategy, the simulation experiment indicated that it's a feasible and suitable measure.Finally, in light of the principle of establishing evaluation items, the evaluation system of bus traffic development was established and applied to the relevant field of Hunan province. The calculation manners of items were explained and evaluation criterions were presented. By AHP (Analytic Hierarchy Process) , synthetic evaluation system to bus development was established.
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