Managing traffic congestion with GIS

Amudapuram Mohan Rao, Senior Scientist, https://168pg.net/  Central Road Research Institute
S. Velmurugan, Scientist F and Head, Traffic Engineering and Safety Division, Central Road Research Institute
Arpita Chakraborty, Former Post Graduate Student, NIIT University

Various factors influence the speed of vehicles on the street. Mapping out those elements can assist within the assessment and control of visitors congestion. In this article, GIS has been used to pick out diverse roadside friction points that effect automobile pace on a number of the city arterials in Delhi

Over the years, GIS has emerged as one of the maximum efficient technological equipment inside the subject of transportation engineering. In this text, the competencies of GIS had been used to pick out various roadside friction factors that effect the velocity of the car on some of the city arterials in Delhi. In this regard, the speed of each automobile is almost not possible to tune on a roadway the use of the conventional techniques; and for this reason there’s a need to deploy cutting-edge generation like GPS for tracing the speed of vehicles. Consequently, the common velocity is deduced primarily based on the pattern of vehicles traversing over the described trap period spread over a time frame or place.

There are different factors that have an impact on the rate of motors on the road, including width of road, shape of the street, production paintings on roads (e.G. Paintings undertaken for Metro Rail creation), numerous land makes use of that attract motorized / pedestrian traffic certain to hospitals, institutional, commercial area and many others. Mapping out these elements using GIS can assist within the assessment and management of traffic congestion.

In this article, an attempt has been made to evaluate the impact of roadside friction place on various widths of carriageways in Delhi location. In this regard, quantification was accomplished for each friction point and its have an impact on on the visitors speed. This look at discovered that the influences of the pedestrian crossing roads and parking of motors at the roads could have a terrible impact on speed varying from 19% to 64% while the bus stops positioned with out the right provision of bus bays would lessen the speed of the vehicle to the tune of 24% to forty three%.

Introduction

Geographic Information System (GIS), over time, has emerged as one of the green technological gear inside the subject of transportation engineering. It has shown terrific programs in a number of fields along with transportation. Increasingly, city and transportation planners and experts are finding that the combination of traditional transportation studies methods with the delivered cost of GIS capabilities along with integration of geographical spatial-analysis and cartography, offers a sturdy platform for both traditional and modern transportation and site visitors sports. The diverse blessings of GIS make it an appealing option to be used to face the emerging visitors issues. The gain of GIS may be attributed to its functionality to cope with the large quantity of records with geographic spatial traits. GIS has a huge database storage ability, that could combine records from disparate sources. While working with visitors pace, integrating spatial and non-spatial data from distinctive sources turns into a prime difficulty. Moreover, together with great records integration abilities, it is also a brilliant visualization device as it produces relevant maps helping in choice making manner.
In this text, the capabilities of GIS have been appreciably used to identify numerous roadside friction factors that effect the speed of the vehicle on some of the city arterials in Delhi. There are numerous influencing elements that affect the velocity of vehicles on the street, which includes width of avenue, structure of the road, production work on roads (e.G. Work undertaken for Metro Rail creation); numerous land uses that attract motorized / pedestrian site visitors certain to hospitals, institutional, business vicinity and so forth. Mapping out those factors the use of GIS capabilities can help within the assessment and control of site visitors congestion.

Objectives of the Study
The present examine changed into executed with the subsequent goal:
• To identify the roadside friction places on various widths of urban, arterials and sub-arterials in Delhi vicinity.
• To are expecting influence of the friction points on the vehicular velocity on city roads.
Literature Review
Greibbe, et. Al.,(1999) emphasised the advantage of Global Positioning System (GPS) to map the applicable visitors parameters. This can effortlessly be accomplished in a GIS surroundings. This makes possible to make a pre-assessment of various measures associated with the neighborhood goals and which typically proves to be conclusive.
Shaopei Chen et. Al., (2006) studied the issues related to the transportation issue of a Guangzhou city in China. They supplied an ideology of constructing an incorporated, efficient, effective and comprehensive city transportation information system (UTIS) for managing, tracking and planning functions so that its improvement can coincide with town’s developmental pace. For instance, integrating GIS and visitors information can be used to monitor traffic accidents, flows or congestions which have came about in the past, this providing beneficial perception for transportation making plans studies.

Joseph Owusu et. Al., (2006) highlights the use of GIS to create an intensive database containing all of the site visitors facts inclusive of speed records, street geometry, visitors glide, friction points etc. The records received is then processed and mapped. The statistics obtained can subsequently be used to create a database in GIS to assist in selection making for any planning technique together with a pace management programme.

Kalaga Rao and Mohan Rao (2009) studied the utility of GPS for visitors statistics which include travel time and site visitors speed and that they tested the GPS records via traditional strategies and statistically proven the outcomes of those parameters and found that the GPS information can be used for visitors research with out compromising the accuracy of the information.
Anitha selva sofia et. Al., (2013) talks about traffic congestion, that’s a condition on road networks that happens by means of slower, and multiplied vehicular queuing. To examine the effect of the Transportation System Management (TSM) measures, one needs to have a clear view of the waft patterns, area in addition to current road community. GIS can be successfully used to examine the troubles associated with transportation.

Study vicinity
At 1749 km of avenue duration in line with one hundred km², Delhi has one of the highest avenue densities in India. Major roadways include the Ring Road and the Outer Ring Road, which had a excessive site visitors density. Total avenue length of Delhi is ready 32,500 km together with 388 km of National Highways. Owing to flawed improvement of rail primarily based modes in Delhi, the metropolis is heavily dependent on street based totally modes of transportation (ninety three per cent of the entire journeys performed in the city are made the usage of road based delivery systems). As a end result of this, the road length within the metropolis has gone through a increase of 4.Fifty three in step with cent in line with annum, from a trifling 8380 km in 1981 to as high as 20,487 km via 1990, which at gift (2013) stands at a complete of 32,487 km, the very best inside the us of a. In the existing take a look at, five locations have been selected in south Delhi area, the places are shown in Figure 1. The five places are indexed under.

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