Dynamic Capacity Approach Theory And Applications For Traffic Breakdown Assessment At Unsystematic Bottlenecks

Dynamic Capacity Approach: Theory and Applications for Traffic Breakdown Assessment at Unsystematic Bottlenecks

Indonesia as an emerging country has a lot of traffic bottleneck challenges on urban road networks including in Banda Aceh, the capital of Aceh province. It is due to high traffic demand and limited supply of roadway. Consequently, traffic congestion leads to several externalities such as unnecessary travel times, air pollution, energy consumption, and driver frustration. An unsystematic bottleneck defines as a bottleneck that is without any changes in roadway geometric, and sometimes refers to hidden or virtual bottlenecks. Therefore, I wrote a basic traffic engineering book emphasizing the dynamic capacity method with application on virtual bottlenecks assessments. This book is aimed at undergraduate and postgraduate civil engineers particularly dealing with traffic planning and operation at the virtual bottlenecks. This book is essentially distinguished into six chapters. Chapter I and II deals with the traffic mechanism at unsystematic bottlenecks and its theoretical foundation for assessing the speed and capacity drops due to an active unsystematic bottleneck. The fundamental theory of static and dynamic approaches has been comprehensively discussed in this part. The following part of the chapter, III-VI covers practical assessment by considering U-turn and On-street parking bottlenecks as case studies including simulation methods to determine measures of the effectiveness of the design improvements. Data preparation, observation, analysis, and simulation are broadly deliberated for easy understanding for undergraduate and postgraduate university students. While this book is further intended for traffic engineering practitioners. I suppose that it will also be worth practicing for traffic and transport engineers as designers or planners.

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Traffic Breakdown Mechanism of Hidden Bottlenecks on an Arterial Road

Traffic congestion has been a serious social and technical problem since the early year's rapid motorization in Banda Aceh, Aceh Province Indonesia. Urban arterial performance becomes the crucial concerns of many traffic engineers. This study examined the impact of presence of u-turn and on-street parking on deterioration both travel speed and operated capacity.Arterial performances were analyzed using oblique cumulative plots and breakdown method as known as dynamic capacity methods.