The invention mainly provides a 
bus stop 
site selection and 
layout optimization method based on passenger trip 
spatial distribution. The 
bus stop 
site selection and 
layout optimization method based on the passenger trip 
spatial distribution mainly comprises construction of a 
bus stop 
site selection optimization model and a solution 
algorithm thereof. The bus stop site selection optimization model takes minimization of 
walking distance of all the residents for taking buses as a goal and considers realistic constraint factors such as maximum 
walking distance between a resident dense point and a bus stop and upper and lower bounds of distance between adjacent stops, the solution 
algorithm of the bus stop site selection optimization model is a novel 
hybrid algorithm and combines advantages of a bacterial foraging optimization algorithm and a group 
random search algorithm, and according to problem characteristics, individual bacterium coding, initial 
bacterial colony generating, individual bacterium 
evaluation function generating and bacterial foraging operations are redesigned. The bus stop site selection and 
layout optimization method based on the passenger trip 
spatial distribution scientifically and reasonably determines bus stop positions by combining a real road topological structure according to trip spatial distribution characteristics of residents nearby a 
route, so that resident trips are facilitated, and bus operation efficiency is also improved.