Capacity Analysis Based on Vehicle Trajectory Data on a Weaving Bottleneck in Nanjing
Journal Title: Engineering Perspective - Year 2023, Vol 3, Issue 3
Abstract
This paper investigates the capacity of weaving bottlenecks in Nanjing, where multiple traffic streams merge or diverge closely, causing significant traffic disruptions. Utilizing trajectory data from 862 vehicles collected through UAV cameras, the study assesses the bottleneck's capacity and performance measures, including traffic flow, speed, and lane occupancy. The analysis employs a combination of the Highway Capacity Manual (HCM) 2010 guidelines and PTV Vissim simulation software. The HCM 2010 framework provides a standardized approach for evaluating traffic flow characteristics and determining the level of service, while Vissim allows for the evaluation of diverse traffic scenarios. The results reveal that the bottleneck operates at Level of Service E (LOS E), characterized by high congestion, reduced speeds, and prolonged travel times. However, introducing ramp metering to the area improves conditions, resulting in a transition to Level of Service D (LOS D). This study emphasizes the potential of ramp metering to enhance bottleneck performance. Nevertheless, future research should explore other strategies, such as intelligent transportation systems and improved public transportation services, to encourage modal shifts and reduce private vehicle usage. By addressing these challenges, cities like Nanjing can mitigate traffic congestion and create more efficient and sustainable transportation systems. The findings provide valuable insights for urban planners and policymakers seeking evidence-based solutions to optimize traffic flow and mobility in busy cities. By adopting the HCM 2010 guidelines and simulation tools like Vissim, this study contributes to the development of efficient traffic management strategies, ultimately fostering more livable and accessible urban environments.
Authors and Affiliations
Jean Claude Sugira, Nsengimana Jean Pierre, Nshimiyimana Marc
Keywords
Related Articles
- EP ID EP720800
- DOI 10.29228/eng.pers.71385
- Views 122
- Downloads 0
Response Surface Method Based Optimization of the Viscosity of Waste Cooking Oil Biodiesel
In this study, biodiesel fuel production from waste sunflower oil and viscosity optimization was carried out. Dur-ing the production process, catalyst ratio, alcohol ratio and reaction temperature were determined as vari...
Modeling the Vehicle Movement and Braking Effect of the Hydrostatic Regenerative Braking System
In this study, the main elements of a hydrostatic regenerative braking system have been modeled. The model which has been created, the elements in the system and the relationship of the system with the vehicle has been s...
Combustion, Performance and Emissions of Ethanol n-Heptane Blends in HCCI Engine
The aim of this study was to investigate the effects of the ethanol on combustion, performance and emission charac-teristics of a single cylinder, port fuel injection HCCI engine was investigated. 15% ethanol and 85% n-h...
Comparison of Energy Consumption of Different Electric Vehicle Power Systems Using Fuzzy Logic-Based Regenerative Braking
One of the disadvantages of electric vehicles that has not yet been overcome is the long battery refueling time. Be-sides studies to shorten the battery refueling time, increasing the driving range is also a solution to...
Evaluation of Electrification of 4W Light Commercial Vehicle
Road transport is a prime contributor to CO2 emissions in the Indian transportation sector. The motor vehicle fleet in India is responsible for 90% of the total energy consumption in the transport industry and of this, 4...