Influence of bus stop with left-turn lines between two adjacent signalized intersections

Abstract

Based on the symmetric two-lane Nagel-Schreckenberg (STNS) model, a three-lane cellular automaton model between two intersections containing a bus stop with left-turning buses is established in which model the occurrences of vehicle accidents are taken into account. The characteristics of traffic flows with different ratios of left-turn lines are discussed via the simulation experiments. The results indicate that the left-turn lines have more negative effects on capacity, accident rate as well as delay if the stop is located close to the intersections, where the negative effect in a near-side stop is more severe than that in a far-side one. The range of appropriate position for a bus stop without the bottleneck effect becomes more and more narrow with the increase of the ratio of left-turn bus lines. When the inflow is small, a short signal cycle and a reasonable offset are beneficial. When the inflow reaches or exceeds the capacity, a longer signal cycle is helpful. But if the stop position is inappropriate, the increase of cycle fails in reducing the negative effect of left-turning buses and the effectiveness of offset is weakened.

Cellular automata models for signalised and unsignalised intersections with special attention to mixed traffic flow: a review

“…Overtaking speed was calculated with the following equation with probability P ov where G 2 is the space available before slow vehicles and G 1 is distance between fast and slow vehicle[43, 44]1✗✓✗✗open✗driver behaviour of vehicles approaching traffic light were modelled[39]2✓✗✓✗open✓CA model to study straight‐through movements of heterogeneous bicycle traffic at signalised intersection. Model was validated with field data[45]1✗✓✗✗open✓driver behaviour affected by pedestrian violations were studiedlane change and direction[14]3✗✓✗✗open✓vehicles and pedestrians were modelled at intersectiononly direction changeinvestigated the effects of turning vehicles (both left and right) on the performance of intersection[18]2✓✗✗✗open✓a three lane signalised intersection based on NS CA model including left turning buses and occurrences of accidents, field validation wa...…”

“…Further, various vehicle types can generate different emissions which is another reason to study heterogeneity. A few authors have included two or more modes in their study [14, 17, 18, 64].…”

“…Many authors have tried to simulate traffic at intersections considering traffic as homogeneous vehicle system [11–14], in some other studies [15–18] traffic was considered as heterogeneous. Earlier when a single mode was predominant the traffic was more or less homogeneous.…”

Analyzing the effect of fixed and moving bottlenecks on traffic flow and car accidents in a two-lane cellular automaton model

“…Ming-bao et al 11 studied the influence of bus stop with left-turn lines between two adjacent signalized intersections based on a symmetric two-lane Nagel-Schreckenberg model, they found that the left-turn lines have a negative effect on the accident rate as well as delay if the stop is located close to the intersections. Juran et al 12 developed a dynamic traffic assignment model which could determine the impact of moving bottleneck.…”

Effects of rainy weather on traffic accidents of a freeway using cellular automata model

“…As an excellent tool, cellular automata (CA) models have been used widely to investigate the traffic flow behaviors. In particular, many researchers have studied the occurrence of car accidents by using the extended CA models, [16][17][18][19][20][21][22][23][24][25][26] e.g., the deterministic NS model proposed firstly by Boccara et al [20] Only the traffic influences of low visibility weather, e.g., foggy weather, on a freeway including the fraction of real vehicle rear-end accidents and road traffic capacity were studied by using the established CA model. The traffic flow model in rainy weather has not been established and the possible traffic accident has not been discussed.…”