Research on the Method of BRT Network Planning

Considering the fact that BRT (bus rapid transit) lines are generally constructed in built-up areas, this paper develops a method for BRT planning. The method can be used to design and optimize BRT lines in urban areas in terms of qualitative analysis and analytical calculation. Firstly, to calculate the density of bus lines on each road, Polygon Data is used to denote urban roads in GIS, and Polyline Data is used to denote bus lines. The number of overlapping bus lines could be computed with space calculation functions in GIS, and roads with a large number of bus lines can be found. Secondly, an optimization model based on the maximization of direct traveler density is developed to lay the lines one by one and form a network step by step. Finally, considering the actual situation, a BRT network of Dalian is built based on the result of qualitative analysis and analytical calculation.