Determining qualification of urban signalized intersections with method of scoring design criteria

Hatipoğlu, Seda; Oğuzhan, Nuri Emre

doi:10.25092/baunfbed.390930

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…The effectiveness of the design was evaluated by considering different types of intersection phase plans and measured by considering the delay performance criterion. As a result of the analysis, as the left turn ratio increased, it was found that different alternatives should be preferred instead of roundabouts, depending on the increase in the number of phases [14]. A methodology is a method of gathering information and data to create works.…”

Section: Methodsmentioning

confidence: 99%

Performance Analysis of Roundabouts using SIDRA: A Micro-Analytical Software

Khalifa,

Ab Ghani,

Vasudevan

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Intersections affect the safety and capacity of urban traffic. Therefore, the design and selection of the type of intersection need to be made very carefully. According to the demand level, a different intersection can be designed. Modern roundabouts are one of the types of circular intersections that provide advantages over other types of intersection in terms of smooth operation and safety. Modern roundabouts exist in several types today worldwide. In practice, the distinction about the kinds of roundabouts would not be fully clarified; as a result, queuing and delay can be seen as negative effects. The aim of this study was to analyze the operational performance of the roundabout at Jalan Mutiara Emas Utama in Mount Austin, Johor Bahru, during peak hours. The traffic volume was also measured for a 1-hour peak-hour period in the morning and evening. The geometric data and performance of roundabouts in the year 2020 were taken from Majlis Bandaraya Johor Bahru (MBJB). and analyzed using the SIDRA version 9 software. As result the performance analysis indicated that the demand flow of vehicles at the south lanes, Jalan Mutiara Emas Utama (R3), and west lanes, Jalan Mutiara Emas Puteh, (R10), exceeded the capacity and resulted in LOS F. The roundabout’s performance in 2020 was compared to the current year, 2022, with both left-turn lanes achieving a free-flow speed resulting in Level of Service (LOS) B in 2020 and LOS A in 2022. Specifically, the north lane (R2) and east lane (R1) transitioned from LOS B to LOS A in 2020 and 2022, respectively. However, the south lane (R3) and west lane (R1) require capacity and LOS improvements to alleviate traffic conditions. Overall, the project’s success is expected to benefit MBJB by enhancing traffic management in Mount Austin, Johor Bahru.

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Section: Methodsmentioning

confidence: 99%

Performance Analysis of Roundabouts using SIDRA: A Micro-Analytical Software

Khalifa,

Ab Ghani,

Vasudevan

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Section: Methodsmentioning

confidence: 99%

A Comparison of Traffic Flow Performance of Roundabouts and Signalized Intersections: A Case Study in Nigde

Demir¹,

Demir²

2020

TOTJ

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Background: Intersections affect the safety and capacity of urban traffic. Therefore, the design and selection of the type of intersection need to be made very carefully. According to the demand level, a different intersection can be designed. Signalized intersections are one of the intersection types in which the sequence and duration of the flow at the intersection are provided by the lights. Generally, this type of intersection is used on roads with high traffic volume. Modern roundabouts are one of the types of circular intersections that provide advantages over other types of intersection in terms of smooth operation and safety. Modern roundabouts exist in several types today worldwide. In practice, the distinction about the kinds of roundabouts would not be fully clarified; as a result, queuing and delay can be seen as negative effects. Methods: In this study, to make a distinction and clarify the kinds of roundabouts, first, the roundabouts types are introduced according to geometric and operational aspects. A signalized intersection, where a circular island is placed and also signalized, was investigated in terms of capacity, delay, and emissions located in Niğde. The traffic flow performance of the current state (nested signalized roundabout) was calculated with HCM Method (for signalized intersection) using SIDRA and compared with roundabout solutions of the intersection with HCM6 (for roundabout) method using SIDRA Intersection analysis software. Results: From the results of the intersection capacity analysis study based on HCM6, it was seen that the application of a roundabout scenario (intersection considered as a modern roundabout) showed higher performance at the intersections than the intersection having a secondary signal. Capacity increased to 67.8%, the average delay decreased to 72.8% and 95th percentile queue dropped to 82.2%. Conclusion: Roundabout controlling instead of a nested signal system can be an example of the increase in the performance of traffic flow. This highlights the importance of choosing the appropriate roundabout design.

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Geometri̇k Düzenlemeleri̇n Yaya Trafi̇ği̇ Ve Araç Trafi̇ği̇ne Etki̇leri̇ (Bahçeli̇evler Örneği̇)

ÖKSÜZ

Eyigün

2023

İstanbul Ticaret Üniversitesi Teknoloji Ve Uygulamalı Bilimler Dergisi

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Sürekli artan nüfus ve ekonominin büyümesi insanların ortak kullanım alanlarını kısıtlamakta, trafiğin yoğunlaşmasına ve kavşakların kapasitesinin yetersiz kalmasına sebep olmaktadır. Mevsimlik göçlerin, günlük işlerin ve turistik ziyaretlerin sebep olduğu anlık nüfus artışlarında da mevcut trafik çözümlemeleri yetersiz kalmaktadır. Bir ilçenin yapı taşları olarak; o ilçenin insanlarını, yapılarını, coğrafi özelliklerini, ulaşım ağlarını vb. örnek gösterebiliriz. Günümüzde gelişen teknolojik ve ekonomik etkiler, bu unsurları vazgeçilemez kılmaktadır. Odağın insan olduğu ilçelerde ulaşım çok önemli olduğu gibi ilçelerde bulunan yollar da o ilçenin tarihini, kültürünü ve sosyoekonomik seviyesini yansıtır. Bu çalışmada, İstanbul’da bulunan Bahçelievler Ünverdi Kavşağı’nın sorunları ele alınmış, kavşağın mevcut geometrisi ile geliştirilen öneri projeler karşılaştırılmış ve elde edilen sonuçlar değerlendirilmiştir.

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Determining qualification of urban signalized intersections with method of scoring design criteria

Cited by 3 publications

References 5 publications

Performance Analysis of Roundabouts using SIDRA: A Micro-Analytical Software

Performance Analysis of Roundabouts using SIDRA: A Micro-Analytical Software

A Comparison of Traffic Flow Performance of Roundabouts and Signalized Intersections: A Case Study in Nigde

Geometri̇k Düzenlemeleri̇n Yaya Trafi̇ği̇ Ve Araç Trafi̇ği̇ne Etki̇leri̇ (Bahçeli̇evler Örneği̇)

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