| In this paper, the author established the comprehensive evaluation model on service performance of existing pedestrian facility according to the pedestrian facilities on urban roads of xi'an, and established the expensive estimation method on the cross-street pedestrian satisfaction degree.In this article, the author in the investigation foundation, has carried on the appraisal by the Xi'an urban road pedestrian street grade separation facility, analyzed has affected the urban road pedestrian street grade separation facility service performance the factor, massively carried on the urban road pedestrian the facility use function realization question street grade separation facility construction in view of present stage each large and middle scale cities which appeared, in the city infrastructure plan stratification plane proposed some suggestions, hoped has constructed the selected location stage prevention work careless mistake from the city pedestrian street grade separation facility plan, guaranteed the facility function realization. First, the author has carried on the exhaustive scene investigation and study to the Xi'an existing city pedestrian street grade separation facility, in after the present situation analysis, constructs the present situation facility the selected location area to divide into according to its characteristic three big kinds, in view of each kind of selected location condition character ristic, analyzes the city macroscopic selected location influence factor; Then regarding the facility the different use present situation which appeared in the simulated condition, the author has carried on the summary, analyzed the city pedestrian street grade separation facility intermediate stage selected location to need the key consideration the factor. Finally chooses has the representative case to carry on the analysis, pinted out in the city pedestrian street grade separation facility selected location should pay attention several aspects: In road section pedestrian and car dealer ship volume of traffic, present situation region foot traffic streamline, present situation infrastructure construction. The case has confirmed above three big factors to the city pedestrian street grade separation facility function realization influence. Has done some work for the urban road pedestrian grade separation facility selected location question discussion, will put forward the proposal to the later city infrastructure plan design.Finally pointed out that, the urban road pedestrian street grade separation facility selected location work must gradually have car rieson with emphasis, first in the whole city scope, seeks the transportation to support stops up the road section, the analysis supports stops up the present situation person line as well as the vehicle volume of traffic, in the main selected location condition article the induction is three big kinds; After determined the selected location key land sector, is clear about a foot traffic attraction position in the region, carries on the analysis to the existing walk cross traffic streamline, is clear about between the facility selected location and the original streamline relations; Finished in the intermediate stage selected location, after basically determined the facility constructs the position, the investigation present situation city walk infrastructure, avoids duplicate ingestablishes, guarantees the facility functionrealization. |
