In this paper, we use a two-lane CA model to investigate the effect of a bus stop between two neighbouring intersections on the capacity of the bus. Both the case of a bus stop with a special stopping lane and that of one without are considered. The capacity versus the distance
LB(
LD) between the stop and the upstream (downstream) intersection is studied, with respect to the entering probability
Pe and the traffic light cycle
T. It is found that a bus stop near an intersection can act as a bottleneck and cause a drop in the capacity when the
LB (or
LD) is below a critical point
46a20a05cdf7f56a6" title="Click to view the MathML source" alt="Click to view the MathML source">LBc1(or
LDc1). However, the situation when the stop is located near the downstream intersection is worse than that of the upstream one. Furthermore, the simulation results show that the negative effect varies with the increase of the cycle time
T and the capacity can be maximized by adjusting
T. Comparisons between the two cases suggest that the stopping lane can improve the capacity to some extent. These results mean that the capacity can be exploited by changing the position of the bus stop or the cycle time, and adding a stopping lane if necessary. These findings may be useful in offering scientific guidance for the management and design of traffic networks.