Modelling the impacts of reducing non-motorised traffic in urban corridors of developing cities

Hossain, Moazzem; McDonald, M.

doi:10.1016/s0965-8564(97)00014-1

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…The traffic snarls of the world's big cities show how difficult it can be for smooth collective movement to occur, especially when the traffic comprises a mixture of vehicles of different sizes (Hossain and McDonald, 1998) (reviewed by Helbing et al, 2007). Traffic flows could be improved if all drivers adhered to the strict priority rules devised by traffic-engineers.…”

Section: Introductionmentioning

confidence: 99%

Priority rules govern the organization of traffic on foraging trails under crowding conditions in the leaf-cutting ant Atta colombica

Dussutour

Beshers

Deneubourg

et al. 2009

Journal of Experimental Biology

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SUMMARYForaging in leaf-cutting ants is generally organized along well-defined recruitment trails supporting a bi-directional flow of outbound and nestbound individuals. This study attempts to reveal the priority rules governing the organization of traffic on these trails. Ants were forced to move on a narrow trail, allowing the passage of only two individuals at a time. In this condition, a desynchronization of inbound and outbound traffic was observed, involving the formation of alternating clusters of inbound and outbound ants. Most clusters of inbound ants were headed by laden ants followed by unladen ants. This occurred because inbound unladen ants did not attempt to overtake the laden ants in front of them. As unladen ants move on average faster than laden ants, these ants were thus forced to decrease their speed. By contrast, this decrease was counterbalanced by the fact that, by staying in a cluster instead of moving in isolation, inbound unladen ants limit the number of head-on encounters with outbound ants. Our analysis shows that the delay induced by these head-on encounters would actually be twice as high as the delay induced by the forced decrease in speed incurred by ants staying in a cluster. The cluster organization also promotes information transfer about the level of food availability by increasing the number of contacts between outbound and inbound laden ants, which could possibly stimulate these former to cut and retrieve leaf fragments when reaching the end of the trail.

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Section: Introductionmentioning

confidence: 99%

Priority rules govern the organization of traffic on foraging trails under crowding conditions in the leaf-cutting ant Atta colombica

Dussutour

Beshers

Deneubourg

et al. 2009

Journal of Experimental Biology

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“…As simulation techniques enable administrators and engineers to assess policies, to design road geometry, and to decide traffic control strategies in advance, several studies have transferred simulation models based on carfollowing theory to PTWs (16)(17)(18)(19)(20)(21)(22)(23). However, models for car-following are developed based on the behavior of passenger cars, and they do not take into account the lateral movement of PTWs.…”

mentioning

confidence: 99%

Lateral Movement Decision Model for Powered Two-Wheelers in Taiwan

Dong

Chen

Cirillo

et al. 2019

Transportation Research Record: Journal of the Transportation R

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The maneuvering of powered two-wheelers (PTWs) is non-lane-based, and the interactions between PTWs and other vehicles in mixed traffic are complex. The behavior of PTWs, particularly in developing countries, is not the same as that of passenger cars, which has been studied for several decades. This study contributes to the existing literature on PTWs in several ways. A real-world microscopic vehicle trajectory database has been digitalized from a video clip for a four-lane urban arterial in Taipei (Taiwan). From a modeling perspective, a dynamic discrete choice model is proposed to capture the lateral-shifting behaviors of PTWs in mixed traffic conditions. The model considers not only the positions of all surrounding vehicles but also riders’ perception of expected traffic conditions. The behavioral model is able to describe the sequential non-lane-based maneuvers of PTWs, including not following lane discipline, filtering, moving abreast of other vehicles in the same lane, oblique following, swerving, and overtaking from the same lane. The results indicate that a better model fit is obtained when taking into account the dynamic nature of the problem. The data and methods proposed have the potential to improve microscopic traffic simulation of mixed traffic with a large amount of PTWs. Practical applications are concerned with the improvement of road geometries and the definition of control strategies for mixed traffic flows.

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“…VisSim models motorcycles, but its assumptions about reserved space for cars and motorcycles become invalid in a motorcycledominated environment. Although a few noncommercial microsimulation models have the capability to model mixed traffic with motorcycles (10,14), the scope of the traffic measures being tested in the current study is far beyond the range that these models can consider.…”

Section: Methodsmentioning

confidence: 99%

Modeling Bus Lane Priorities in a Motorcycle Environment Using SATURN

Tranhuu

Montgomery

Timms

2007

Transportation Research Record: Journal of the Transportation R

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Bus lanes and median bus ways such as those in Curitiba, Brazil, and Bogotá, Colombia, are attracting a great deal of attention worldwide. For many Asian developing cities, there is an interest in how successfully bus lanes and bus rapid transit will function, given that traffic conditions in such cities typically are different from those found in Latin America. This paper addresses this issue for Asian cities whose traffic is dominated by motorcycles, concentrating particularly on Hanoi, Vietnam. With the use of a SATURN mesoscopic simulation model for Hanoi (with 322 junctions and 1,108 links), different bus lane–bus way designs are compared in regard to their effects on travel time savings. Results show that the level of motorcycle violations has an important impact on the success of bus lane schemes and that there is no significant speed improvement on bus lanes if enforcement is weak. Bus ways can achieve much higher bus speeds than can bus lanes, but general traffic speeds are likely to reduce them significantly if there is no mode switching from private modes to buses. In such circumstances the potential extra delay due to a poorly designed bus way is greater than that due to a poorly designed bus lane. The route-switching flexibility of motorcycles also has considerable effects on the performance of bus lanes and bus ways.

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Modelling the impacts of reducing non-motorised traffic in urban corridors of developing cities

Cited by 7 publications

References 2 publications

Priority rules govern the organization of traffic on foraging trails under crowding conditions in the leaf-cutting ant Atta colombica

Priority rules govern the organization of traffic on foraging trails under crowding conditions in the leaf-cutting ant Atta colombica

Lateral Movement Decision Model for Powered Two-Wheelers in Taiwan

Modeling Bus Lane Priorities in a Motorcycle Environment Using SATURN

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