Methods for the Assessment of Performance Indication Measures at Amakom Intersection and Their Application in Micro Simulation Modeling

Nyantakyi, Emmanuel Kwesi; Owusu, Appiah; Borkloe, J. K.

doi:10.7708/ijtte.2014.4(1).03

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…Drew (1968) described simulation as "a dynamic representation of some part of the real world achieved by building a computer model and moving it through time". Since the past decades, traffic simulation had been gaining interest and widely used in traffic analysis because the process is more cost-effective, safer, and faster than field implementation and testing (Nyantakyi et al 2014). The traffic simulation models are categorized as microscopic or macroscopic models.…”

Section: Macroscopic and Microscopic Modelsmentioning

confidence: 99%

Development of Cell Transmission Model for Traffic Signal Coordination

Kei¹,

Susilawati²

2020

Journal of Infrastructure &Amp; Facility Asset Management

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This research aims to develop a macroscopic traffic model to estimate delay at signalized intersections by considering queue forming and dissipation in the presence of a pre-timed signal. Cell Transmission Model (CTM) was set up with basic traffic input parameters to estimate delay and level of service (LOS) and the results are compared to a computational analysis run by SIDRA (Signalized and Unsignalized Intersection Design and Research Aid) software. To optimize the traffic flow condition, traffic signal coordination is carried. It was found that the optimized traffic signal setting reduces delay by 25.5% and 17% in Intersection A and Intersection B after a second run by CTM.

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Section: Macroscopic and Microscopic Modelsmentioning

confidence: 99%

Development of Cell Transmission Model for Traffic Signal Coordination

Kei¹,

Susilawati²

2020

Journal of Infrastructure &Amp; Facility Asset Management

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“…(Chai and Wong, 2014) analysed the delay of shared lanes at signalized intersections under different proportions of through and right-turn movements and considering the blockage of either of movements. (Nyantakyi et al, 2014) explained signalized intersections are vital nodal points in a transportation network and their efficiency of operation greatly inf luences the entire network 's performance. The study concluded that changes in phasing plan with geometric improvement would improve upon the intersection's level of service.…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluation of Delay Characteristics at Signalized Intersections for Improvement in Level of Service

2018

IJTTE

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In our country traffic flow is heterogeneous and is governed by traffic characteristics as driver behavior, road geometry etc. Increase in traffic volume and limited road way width should be promptly addressed by traffic engineers who shall provide solutions which shall be more competent than traditional signalized designs. The recommendations suggested by the traffic engineer for improving signalized intersection shall be less expensive than providing interchanges. Metropolitan cities like Hyderabad are also experienced with delay and congestion due to ineffective traffic signal operation. Non-lane based traffic behavior, varying pavement width and driver characteristics are a few reasons for delay and congestion on our city roads. Improvement in the above context can be achieved through lane prioritization, alternative routes etc. This improvements will certainly reduce the impact on fuel consumption, improves safety and Level of Service at signalized intersection. In this context a study was carried at selected four major intersections (Bowenpally, Fathenagar, Balanagar and Alwyn) in Hyderabad city and was evaluated for existing traffic signal facilities. Parameters such as delay and queue length and Level of Service (LOS) were considered for evaluation. It is observed from simulation results that all the four intersections provide longer delay, larger queue length on major approaches of the intersections. These intersections were improved by providing alternative route for U-turn and left turn traffic movements which is achieved through channelization. Delays, average queue lengths were improved at all the four intersections. This has also resulted in achieving improved of level of services at the all signalized intersections.

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“…(Bella, 2013;Mahona et al, 2019) observed that static factors such as T-junctions and bus-stops also contribute to traffic congestion. However, static factors can be treated by improving the geometric features of roads that would improve the level of services (LOS) (Nyantakyi et al, 2014). In the analysis of the effect of roadside friction factors on congestion on some road links in Kumasi, Ghana, (Obiri-Yeboah et al, 2019) included static roadside friction factors such as vegetable market, lay-bye, fuel station, mechanic shop, vulcanizing activities, and mini-mart together with some dynamic factors such as walking pedestrians and crossing pedestrians.…”

Section: Introductionmentioning

confidence: 99%

Ffects of Roadside Friction Elements on Travel Performance and Level of Service in Kigali

2020

IJTTE

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Providing efficient mobility is the cornerstone of the socioeconomic development, however, the performance of the road transport systems in the developing countries' cities has been reduced and affected continuously due to the increase in road users both motorized and non-motorized and roadside friction elements. Recent researches revealed that efficiency in urban transport is affected by different factors associated with roadside activities. In most developing countries, cities, including Kigali City, a proliferation of roadside friction elements affect travel performance measures in the locations where these elements occur. This study attempts to analyze the effect of dynamic roadside friction factors on traffic performance measures such as speed and level of service using data collected from Kigali urban roads. Data collected included spot speed data, road condition data, traffic, and roadside elements data. All data were collected in the field over six road-stretches covering different functional classes of roads in Kigali City. Key roadside friction (RSF) elements that affect traffic performance were selected based on ANOVA results and a sensitivity analysis was carried out to quantify the impact of roadside friction factors on speed and level of service. Moreover, relationships of speed, density, and flow were developed taking into account typical dynamic roadside friction elements. Overall, it was found that roadside friction factors affect travel performance in the locations where they occur and their effects are not only on two-lane roads but also on four-lane roads. The models developed in this study take into consideration roadside friction factors, and therefore they can be used to predict operating mean vehicle speed and density. To minimize the effects of roadside friction factors on traffic performance, the research-based information and findings from this study can be used in setting out guidelines while imposing some restrictions to eradicate an occurrence and the proliferation of roadside friction elements.

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Methods for the Assessment of Performance Indication Measures at Amakom Intersection and Their Application in Micro Simulation Modeling

Cited by 3 publications

References 11 publications

Development of Cell Transmission Model for Traffic Signal Coordination

Development of Cell Transmission Model for Traffic Signal Coordination

Evaluation of Delay Characteristics at Signalized Intersections for Improvement in Level of Service

Ffects of Roadside Friction Elements on Travel Performance and Level of Service in Kigali

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