Traffic Congestion Improvement Scheme of the Corridor Between Beijing Deputy Center and Central Urban Area

Author(s):  
Chuanjiao Sun ◽  
Panyi Wei
Author(s):  
Yaxing Ren ◽  
Truong Quang Dinh ◽  
James Marco ◽  
David Greenwood

The increasing number of cars leads to traffic congestion and limits parking issue in urban area. The narrow tilting vehicles therefore can potentially become the next generation of city cars due to its narrow width. However, due to the difficulty in leaning a narrow tilting vehicle, a drive assistance strategy is required to maintain its roll stability during a turn. This article presents an effective approach using torque vectoring method to assist the rider in balancing the narrow tilting vehicles, thus reducing the counter-steering requirements. The proposed approach is designed as the combination of two torque controllers: steer angle–based torque vectoring controller and tilting compensator–based torque vectoring controller. The steer angle–based torque vectoring controller reduces the counter-steering process via adjusting the vectoring torque based on the steering angle from the rider. Meanwhile, the tilting compensator–based torque vectoring controller develops the steer angle–based torque vectoring with an additional tilting compensator to help balancing the leaning behaviour of narrow tilting vehicles. Numerical simulations with a number of case studies have been carried out to verify the performance of designed controllers. The results imply that the counter-steering process can be eliminated and the roll stability performance can be improved with the usage of the presented approach.


Author(s):  
Yi Cao ◽  
Yi-xiao Wang ◽  
Zhong-zhen Yang

For satisfying the growing demand of parking in urban area and relieving traffic congestion in downtown, under the condition of urban subway park-and-ride (P&R), the methods of site selection and scale calculation of parking lots are studied. Selecting Xi'an Rd. business circle in Dalian as study object, both survey and analysis of parking demand were conducted. Based on the principle of random equilibrium selection, the logit model of P&R demand was constructed. Then the forecasting models of parking demand both in downtown and peripheral zones were proposed respectively. Using the minimum travel distance of vehicles as the objective function, site selection optimization model of P&R station was constructed. The calculation methods of scale for parking lots in both downtown and P&R station were also processed. For the case of Xi'an Rd. business circle, not only the site of P&R station was planned, but the scale of parking berth was calculated. According to the plan and calculation, the total number of parking berth has increased from 3380 to 4011. Among the planned berths, 75.7 % are in the business circle and 24.3 % in P&R stations are outside downtown. Thus, the number of planned berths in the business circle has actually decreased by about 8 %. The research indicates that, for downtown with subway system, by reducing parking berths in downtown and increasing them in P&R stations outside the urban area, this planning method is more beneficial to relieve the problems of parking and traffic congestion in downtown than traditional method.


2020 ◽  
Vol 12 (5) ◽  
pp. 849 ◽  
Author(s):  
Jennifer Scoular ◽  
Richard Ghail ◽  
Philippa Mason ◽  
James Lawrence ◽  
Matthew Bellhouse ◽  
...  

The Lee Tunnel was constructed as the first part of the Thames Tideway Improvement scheme, between 2010 and 2016. With tunnelling for the East section of the main Thames Tideway Tunnel, which joins the Lee Tunnel at Abbey Mills Pumping Station, beginning in early 2020, this paper investigates patterns of deformation in East London during construction of the Lee Tunnel. An unexpected geological feature, later identified as a drift filled hollow, was discovered during tunnelling. This study demonstrates that had eight years of ERS Persistent Scatterer Interferometry (PSI) data been analysed prior to tunnelling, the unusual pattern of displacement may have been recognised and further targeted borehole investigations taken place before the launch of the tunnel boring machine. Results also show how areas of different land use, including cemeteries and historic landfill, exhibit differences in settlement behaviour, compared with surrounding terraced housing. This research highlights the challenges in interpreting PSI results in an urban area with ongoing construction and the value of a long archive of data, which now spans almost three decades in London, that can be used to establish a baseline prior to construction.


2020 ◽  
Vol 18 (13) ◽  
Author(s):  
Abdul Ghapar Othman ◽  
Kausar Hj. Ali

Transportation is one of the key indicators used to measure the Quality of Life of people especially those living in the urban area. Many aspects of transportation are very significant as they have the power to directly influence our way of life in search for a better Quality of Life. Many Malaysians depend on private vehicle transportations to cater their daily travel needs which inevitably leads to an over infiltration of vehicles into the urban area. Automobile dependency has always been viewed as a potential threat to Malaysia’s urban areas, as it contributes to the increase in traffic congestion, higher accidents rate, inefficient usage of urban land, environmental pollution, adverse economic impacts, urban sprawling and reduces the overall quality of public transportation. All these negative impacts deteriorate the quality of life of urban dwellers. This chapter will discuss Malaysia's urban transportation in general, focusing on the struggle between private and public transportation usage and the impacts of automobile dependency towards the urban dwellers’ Quality of Life; as well as putting forward possible strategies and measures in an attempt to provide a balanced urban transportation system.


2016 ◽  
Vol 12 (1) ◽  
pp. 37
Author(s):  
Dwi Cahyo Setiono

Magetan Regency Government built north-ring-road in order to alleviate traffic congestion in urban center area. However, the ring-road attracted people to utilize the surrounding area. The area utilization was estimated influencing the form and the structure of Magetan Urban Area. In this respect, this research is aimed to explain the relationship between north-ring road development and the change of form and spatial structure of Magetan Urban Area by using a quantitative approach and a descriptive method in its practice. As the result, the form of Magetan Urban area is compact-square with linear form in the several parts of the urban area. The structure of Magetan Urban Area is sectoral which characterized by the main activity in urban center and swept away following the main road. The development in the periphery area was caused by the increase of activities in urban center. However, the development did not change the urban form, but it contributed to the larger size of the urban form. The development of north-ring road only impacted to the development in the several villages surrounded the road, so it did not change the form and the structure of Magetan Urban Area directly.


Traffic Congestion is a situation of transportation system that results in slow speed of vehicles, take large time for trip and increase vehicle quening. In metro city, traffic congestion is the major problem. Pune comes in metropolitan city. The increasing number of vehicles in the metro city leads to traffic congestion. Thus, there is need of proper traffic management in the city. The objective of this research work is to study the traffic characteristics of urban area and provide simulation technique. The study is based on traffic data collected for 8 days during peak and non-peak hours. Different study is carried out to find out the problem statement like volume study, travel time studies, parking studies, delay studies, pedestrian studies, and accident studies. The study is divided in four major parts like Causes of traffic congestion in urban area, remedial measure to avoid traffic congestion. Current IRC specification on SH-27, and new traffic strategies can be implemented by Simulation of Urban Mobility SUMO - for analysis before they are using in real word simulation. In this research paper, we comparatively study the Indian Road Congress (IRC) SP:84-2014 for state highway 27 i.e.Nagar road and that study is divided into the 12 major points .


2016 ◽  
Vol 1 (1) ◽  
pp. 105-115
Author(s):  
Ng Chee Yee ◽  
◽  
Joanne Mun-Yee Lim ◽  
Anis Fariza ◽  
◽  
...  

Vehicular ad hoc network (VANET) is a wireless network that is formed by vehicles that are connected to each other through ad hoc formation. Since nodes in VANET are highly mobile moving in unpredictable environments, therefore VANET should be made adaptable. In order to have an adaptable VANET, several parameters such as end to end delay and Signal to Interface Noise Ratio (SINR), are used to detect traffic congestion/ transmission signal degradation. In this paper, several experiments were conducted to test the suitability of SINR and end to end delay in detecting traffic congestion/ transmission signal degradation in VANET. The experiments were conducted in congested, moderate and traffic free conditions in an urban area of Klang, Malaysia. Results showed that under different traffic congestions and transmission environments, SINR and end to end delay showed different readings, which proved the suitability of SINR and end to end delay in detecting traffic congestion and transmission degradation in VANET.


2021 ◽  
Vol 0 (6) ◽  
pp. 138
Author(s):  
Muhammad Andika Satrugna Mahardhika ◽  
Erma Suryani ◽  
Alifiansyah Arrizqi Hidayat

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