Park and Ride Facility Location Research of Rail Transit Based on Bi-Level Programming Model

2013 ◽  
Vol 779-780 ◽  
pp. 1156-1161
Author(s):  
Xian Guang Wang ◽  
Zhen Guo Liu ◽  
Yuan Yuan Mai ◽  
Xiao Nian Sun
Keyword(s):  
Facility Location ◽  
Road Network ◽  
Road Traffic ◽  
Programming Model ◽  
Central Area ◽  
User Equilibrium ◽  
The Road ◽  
Park And Ride ◽  
Assignment Method ◽  
The City

This paper seeks to build new park and ride facilities (including the location and size) as well as expand the old ones based on the super road network composed of the road network and mass rapid transit (MRT) network. Park and ride facility location model of the outskirts of the city is established grounded infusing path-based user equilibrium assignment model and multi-assignment method, which is based on minimal investments. The calculation results of the model show that park and ride facilities on the outskirts of the city can greatly reduce the road traffic in central area.

scholarly journals Opportunities to improve road traffic on short-length road connections by correlating intersection traffic lights

2022 ◽  
Vol 960 (1) ◽  
pp. 012020
Author(s):  
A Boroiu ◽  
E Neagu ◽  
A A Boroiu
Keyword(s):  
Road Traffic ◽  
Central Area ◽  
Green Light ◽  
Traffic Light ◽  
City Center ◽  
Traffic Lights ◽  
The Road ◽  
Micro Simulation ◽  
Road Intersections ◽  
The City

Abstract The paper aims to explore the possibilities of improving road traffic in the central area of cities characterized by a longitudinal arrangement of the street network, with application for the case of Pitesti, where the road network in the central area consists of two main roads arranged longitudinally, having one-way regulated traffic, interconnected by several streets. A special traffic problem is reported in the city center: on the main road connecting the two boulevards, the vehicle storage space is insufficient - because the distance between the two road intersections is too small and there is no correlation between the Green phases of traffic lights in the two intersections. The research, based on traffic measurements performed with DataFromSky software and micro-simulation traffic analyses performed with Vissim PTV software, indicated that the best solution is the partial or total correlation of the green time from the traffic light intersections that delimit the connecting road artery. As, almost exclusively, the works dedicated to the correlation of green light of traffic lights treat the problem only along the road arteries, this paper raises a special issue and reveals the possibility of simple solutions, by correlating the traffic lights at the intersections connecting the main arteries.

Study on City Road Network Reserve Capacity under Ice and Snow Condition

2011 ◽  
Vol 97-98 ◽  
pp. 440-444
Author(s):  
Yan Li Ma ◽  
Li Fei Han ◽  
Yu Long Pei
Keyword(s):  
Road Network ◽  
Programming Model ◽  
User Equilibrium ◽  
Level Of Service ◽  
Reserve Capacity ◽  
Travel Time Reliability ◽  
The Road ◽  
Snow Condition ◽  
On The Road ◽  
Set Up

To study the reserve capacity of city road network under ice and snow condition，the upper programming model was build on the basis of travelers’ demands on level of service, which was incarnated on capacity of links, and travel time reliability, while user equilibrium (UE) was set up in the lower programming model. Then, sensitivity analysis was applied to solve the bi-level programming model under ice and snow condition. At last, one simulation network example was given to demonstrate the practicality of the given model, and the result showed that the ice and snow condition and the travelers’ demands on level of service had great impact on the road network reserve capacity. The methodology is useful and applicable to evaluate road network under ice and snow condition and lays the foundation for capacity reliability.

scholarly journals Flood Impact Assessment on Road Network and Healthcare Access at the example of Jakarta, Indonesia

2021 ◽  
Vol 2 ◽  
pp. 1-11
Author(s):  
Isabell G. Klipper ◽  
Alexander Zipf ◽  
Sven Lautenbach
Keyword(s):  
Traffic Congestion ◽  
Disaster Preparedness ◽  
Road Network ◽  
Road Traffic ◽  
Healthcare Access ◽  
Flood Event ◽  
Flood Events ◽  
The Road ◽  
The City ◽  
Flooded Areas

Abstract. Climate change leads to an increasing number of flood events that poses threats to a large share of the global population. In addition to direct effects, flooding leads to indirect effect due to damages of the road infrastructure that might limit accessibility of health sites. For disaster preparedness it is important to know how flood events impact accessibility in that respect. We analyzed this at the example of the capital of Indonesia, Jakarta based on the flood event of 2013. The analysis was based on information about the road network and health sites from OpenStreetMap. We assessed impacts of the flood event by comparing centrality indicators of the road network as well as by an accessibility analysis of health sites before and during the event. The flooded areas were home to 2.75 million inhabitants and hosted 79 clinics and hospitals. The flood split the road network into several subgraphs. The city center maintained its importance for time-efficient routing as well as for easily accessible healthcare but might be prone to traffic congestion after such an event. Indirect effects via interrupted road traffic through flooded areas affected around 1.5 million inhabitants and led to an increase of travel time to the nearest hospital by five minutes based on normal traffic conditions.

scholarly journals Planning Structure As A Road Traffic Pollution Differentiation Factor: A Case Study Of Nur-Sultan

2021 ◽  
Vol 14 (3) ◽  
pp. 6-13
Author(s):  
A. Zh. Abilov ◽  
M. A. Anzorova ◽  
V. R. Bityukova ◽  
A. G. Makhrova ◽  
A. A. Khojikov ◽  
...  
Keyword(s):  
Road Network ◽  
Road Traffic ◽  
Spatial Differentiation ◽  
Road Transport ◽  
Middle Part ◽  
Transport Infrastructure ◽  
Network Density ◽  
The Road ◽  
High Level ◽  
The City

The article deals with the problem of spatial differentiation of road transport pollution due to the planning structure changes in the new capital of Kazakhstan. The purpose of the work is to study territorial differences in from vehicles Nur-Sultan from vehicles and to identify the role of embodied planning measures among the main factors of its differentiation. The research methodology included the analysis of 1) the city functions and planning structure transformation as well as the buildings and road network density and concentration; 2) traffic speed and intensity, emissions and their distribution areas for each street.The analysis showed that since 1997, when Nur-Sultan received the capital status, it has grown 3 times in the area, 3.5 times in population, and 6 times in the level of motorization. However, the volume of traffic emissions in the city increased only 2 times, largely due to the development of the planning structure and configuration of the road network. The development of a second center in the new part of the city along with the decrease in the barrier function of the river and transport transit because of the faster construction of transport infrastructure led to an increase in the density of the road network by more than 2 times while reducing the density of emissions in the city center by 2.25 times. For the rest of the territory, despite different growth rates in the road network density, the density of emissions steadily decreases from the center to the periphery. However, several locations with a high level of pollution are still present in the middle part, while on the outskirts of the city there are blocks of estate-type houses with low-quality roads, which hinder the development of public transport.

scholarly journals ENSURING PRIORITY FOR PUBLIC URBAN PASSENGER TRANSPORT ON URBAN STREETS AND ROAD NETWORK

2020 ◽  
Vol 17 (3) ◽  
pp. 390-399
Author(s):  
E. V. Fomin ◽  
V. А. Zeer ◽  
E. S. Arefieva ◽  
N. V. Golub
Keyword(s):  
High Speed ◽  
Road Network ◽  
Road Traffic ◽  
Urban Transport ◽  
Vulnerable Groups ◽  
Rolling Stock ◽  
Passenger Transport ◽  
Street Network ◽  
The Road ◽  
The City

Introduction. Recently, in large and medium-sized cities, the increase in traffic has been exacerbated by the growth of motorization and the lack of development of the road network. Increasing vehicle traffic to a critical level leads to overcapacity of the arteries and, as a consequence, increases the level of delay. Public urban mass passenger transport is one of the most vulnerable groups in this regard. In order to unload the city’s street network, it is necessary to reduce the level of road traffic. One of the effective measures to deal with this problem is to increase the attractiveness of urban mass passenger transport, i.e. to ensure an adequate level of service for passengers including high speed, which can be increased by giving priority to bus traffic. One of the prospects for prioritizing public urban transport is the development of individual lanes or streets for urban rolling stock only. Due to the lack of criteria for the allocation of separate lanes for urban rolling stock, they have begun to appear in the vast majority on the main streets of the city. There are a large number of urban highways used for the operation of only one public transport route with dedicated lanes on them. The need for such arrangements is questionable. It is therefore necessary to formulate the criteria that justify the need for a separate urban passenger lane on a given stretch of the city network. Thus, the purpose of this work is to identify patterns between traffic parameters and the parameters of the urban public passenger transport programme, which will determine the criteria for the need for a separate lane for urban land transport on each individual stretch of the network.Materials and methods. This article deals with the method of determining the need for a separate lane for public urban passenger transport on a given stretch of the road network. In order to improve the quality of the transport of passengers, a mathematical model has been developed, based on such indicators as the level of traffic delay and the share of passenger traffic in the total flow of participants. Results. The necessary conditions have been laid down the strict implementation of which determines the need to ensure the priority of urban mass public passenger transport on the section of the city’s street network under consideration.Discussion and conclusion. The dependencies obtained make it possible to identify the need to ensure the priority of urban transport.

IMPROVEMENT OF THE ROAD NETWORK IN THE CITY OF TYUMEN

2016 ◽  
Vol 3 (1) ◽  
pp. 248-253
Author(s):  
Колупаева ◽  
P. Kolupaeva ◽  
Гаваев ◽  
A. Gavaev
Keyword(s):  
Road Network ◽  
Road Traffic ◽  
The Road ◽  
Effective Functioning ◽  
Road Capacity ◽  
The City

The paper presents the results of calculations aimed at improving the organization of road traffic and increase road capacity by installing calling devices at pedestrian crossings. Methods of development and effective functioning of the road network of the city of Tyumen

scholarly journals Extracting Road Traffic Volume in the City before and during covid-19 through Video Remote Sensing

2021 ◽  
Vol 13 (12) ◽  
pp. 2329
Author(s):  
Elżbieta Macioszek ◽  
Agata Kurek
Keyword(s):  
Travel Behavior ◽  
Traffic Management ◽  
Road Traffic ◽  
Traffic Volume ◽  
The Road ◽  
Traffic Characteristics ◽  
Annual Average Daily Traffic ◽  
On The Road ◽  
The Impact ◽  
The City

Continuous, automatic measurements of road traffic volume allow the obtaining of information on daily, weekly or seasonal fluctuations in road traffic volume. They are the basis for calculating the annual average daily traffic volume, obtaining information about the relevant traffic volume, or calculating indicators for converting traffic volume from short-term measurements to average daily traffic volume. The covid-19 pandemic has contributed to extensive social and economic anomalies worldwide. In addition to the health consequences, the impact on travel behavior on the transport network was also sudden, extensive, and unpredictable. Changes in the transport behavior resulted in different values of traffic volume on the road and street network than before. The article presents road traffic volume analysis in the city before and during the restrictions related to covid-19. Selected traffic characteristics were compared for 2019 and 2020. This analysis made it possible to characterize the daily, weekly and annual variability of traffic volume in 2019 and 2020. Moreover, the article attempts to estimate daily traffic patterns at particular stages of the pandemic. These types of patterns were also constructed for the weeks in 2019 corresponding to these stages of the pandemic. Daily traffic volume distributions in 2020 were compared with the corresponding ones in 2019. The obtained results may be useful in terms of planning operational and strategic activities in the field of traffic management in the city and management in subsequent stages of a pandemic or subsequent pandemics.

Mitigation of road traffic crash hazard in Pakistan

2014 ◽  
Vol 23 (5) ◽  
pp. 567-585
Author(s):  
Muhammad Masood Rafi ◽  
Ashar Hashmat Lodi ◽  
Muhammad Arsalan Effendi
Keyword(s):  
Road Traffic ◽  
Evaluation Model ◽  
Road Traffic Crash ◽  
Potential Hazard ◽  
Suggested Model ◽  
Male Population ◽  
Content Type ◽  
The Road ◽  
On The Road ◽  
The City

Purpose – Road traffic crashes (RTCs) result in creating significant social and economic hazard for affectees, their families and society. The purpose of this paper is to present studies which were conducted to study the patterns of RTCs in Karachi which is a metropolitan city of Pakistan. The studies were conducted on one of the busiest roads in the city named as Shara-e-Faisal. The influence and contribution of different factors in RTCs has been studied and hazardous road sections of Shara-e-Faisal have been identified. Based on the data analysis, an evaluation model has been suggested to reduce the hazard of RTCs on Shara-e-Faisal. The objective of the presented studies is to increase the present level of safety of road travel by reducing crashes on Shara-e-Faisal. Design/methodology/approach – Existing data of RTCs in Karachi have been analysed for the presented studies. For this purpose, Shara-e-Faisal was divided in sections of 1 km length to study the vehicle crash pattern. Location surveys were conducted to record physical conditions of this road. A cluster analysis was carried out to identify hazardous sections of the road. An evaluation model has been suggested in the end to reduce the hazard of RTCs by identifying hazardous road sections of Shara-e-Faisal. Findings – The analysis of the data revealed that the crashes were higher over weekend and on Monday. Male population, particularly young people, and motorcycle riders were the largest affectees of RTCs. In general, more daytime crashes were recorded as compared to nighttime crashes. The crashes in the mid block of the road and those involving rear-end collisions were higher. The hazardous road locations were related to poor road conditions. Statistical analysis indicated that alternate routes were required to reduce the RTC hazard on Shara-e-Faisal. Research limitations/implications – The paper is a small, but an original, contribution to identify a potential hazard which is faced by the community in the city. This is the first attempt (to the best of authors’ knowledge) to address the issue of RTCs in Karachi from an engineering view point. Practical implications – The suggested model can be employed by the authorities as a guideline to mitigate the hazard of road crashes in the country. Originality/value – The paper provides valuable information on the road traffic incidents, their pattern and contributing factors in one of the largest metropolis of Pakistan. The suggested model can become helpful in reducing RTCs in Pakistan.

scholarly journals IMPROVEMENT OF THE CITY TRANSPORT SYSTEM BY MEANS OF SIMULATION

2019 ◽  
Vol 8 (6) ◽  
Author(s):  
Polina A. Buyvol ◽  
Gulnara A. Yakupova ◽  
Irina V. Makarova
Keyword(s):  
Transport System ◽  
Traffic Management ◽  
Road Network ◽  
System Analysis ◽  
Computer Experiment ◽  
Simulation Models ◽  
Traffic Lights ◽  
The Road ◽  
Transport Services ◽  
The City

The transport system plays an important role in human activities and is an integral part of the successful functioning of the urbanized area. The increasing degree of provision of urban residents with transport services should at the same time keep the environment environmentally friendly and sustainable over time. The article is devoted to the issues of ensuring the rational functioning of the city transport system based on the development and implementation of an intelligent road infrastructure management system, the intellectual core of which are simulation models of problem areas of the road network. The objective of the study is the development of tools for organizing traffic in the conditions of the rapid growth of the fleet of vehicles. Research tasks were to analyze the research in the field of traffic management, to consider methods to reduce and prevent traffic jams on roads in general and in individual sections in particular. The following research methods were used: methods of system analysis, methods of modeling traffic flows, simulation, computer experiment. Achievements: the developed simulation model can be used to conduct a computer experiment in order to select the optimal parameters for the functioning of traffic lights on a specific section of the road network of the city of Naberezhnye Chelny

scholarly journals Towards a Rule-driven Approach for Updating Dynamic Road Segments

2012 ◽  
Vol 22 (6) ◽  
pp. 405-411
Author(s):  
Mohammad Reza Jelokhani-Niaraki ◽  
Ali Asghar Alesheikh ◽  
Abbas Alimohammadi ◽  
Abolghasem Sadeghi-Niaraki
Keyword(s):  
Data Model ◽  
Road Network ◽  
Road Maintenance ◽  
The Road ◽  
Dynamic Segmentation ◽  
Transportation Organization ◽  
Manual Tasks ◽  
The City ◽  
Transportation Applications ◽  
Road Segments

In recent years, the development of the GIS-T (Geographic Information System for Transportation) applications has gained much attention, providing the transportation planners and managers with in-depth knowledge to achieve better decisions. Needless to say, developing a successful GIS for transportation applications is highly dependent on the design of a well-structured data model. Dynamic segmentation (DS) data model is a popular one being used more and more for different GIS-T analyses, serving as a data model that splits linear features into new set of segments wherever its attributes change. In most cases, the sets of segments presenting a particular attribute change frequently. Transportation managers place great importance on having regular update and revision of segmented data to ensure correct and precise decisions are made. However, updating the segmented data manually is a difficult task and a time-consuming process to do, demanding an automatic approach. To alleviate this, the present study describes a rule-based method using topological concept to simply update road segments and replace the manual tasks that users are to carry out. The proposed approach was employed and implemented on real road network data of the City of Tehran provided by the Road Maintenance and Transportation Organization (RMTO) of Iran. The practical results demonstrated that the time, cost, human-type errors, and complexity involved in update tasks are all reduced. KEYWORDS: GIS-T, dynamic segmentation, segment, automatic update, change type, rule

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