A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Kathuria, Ankit
- Route Performance Evaluation of a Closed Bus Rapid Transit System Using GPS Data
Authors
1 Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, IN
2 Transportation Planning Division, CSIR-Central Road Research Institute, New Delhi 110 025, IN
Source
Current Science, Vol 112, No 08 (2017), Pagination: 1642-1652Abstract
GPS-fitted buses operating in bus rapid transit systems (BRTS) of India make it easier to collect a wealth of travel-time data from them. This article evaluates the operational performance of BRTS routes based on GPS data. First, various simplified statistical range parameters, viz. coefficient of variation percentile travel time, travel-time distributions, etc. are selected for route evaluation. Then, two bus routes of the Ahmedabad BRTS are selected as case study to develop and validate a methodology for evaluating the performance of these routes based on selected parameters. Weekday bus travel-time data for one direction accounting for 2124 bus trips are used in the study. The study then compares travel-time reliability-based performance of a BRT and a non-BRT route. Further, the study proposes an approach to measure a shift in BRTS network level of service based on two indices - average travel time per kilometre, and travel-time coefficient of variation. A left shift in cumulative plot indicates an improvement in the BRTS network level of service in the year 2016 compared to 2013.
Keywords
Bus Rapid Transit Systems, GPS Data, Route Performance, Statistical Parameters.References
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- Comparative Evaluation of Bus Rapid Transit Routes Using Super Efficiency Data Envelopment Analysis
Authors
1 Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee 247 667, IN
2 Transportation Planning Division, CSIR-Central Road Research Institute, New Delhi 100 025, IN
Source
Current Science, Vol 113, No 07 (2017), Pagination: 1408-1419Abstract
Periodical evaluation of the transit system and its subunits is becoming paramount for improving its performance. This article evaluates the performance of 12 routes of the bus rapid transit system operating in Ahmedabad, India. The performance indices considered in the study were divided into five major types of efficiency, viz. route design, scheduled design, cost, service delivery, and comfort and safety efficiency. Super efficiency data envelopment analysis was used to estimate efficiency scores for each type. Further, composite efficiency of routes was estimated based on analytical hierarchy process technique.Keywords
Analytical Hierarchy Process, Bus Rapid Transit, Data Envelopment Analysis, Route Performance.References
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- Estimating Capacity of Hybrid Bus Rapid Transit Corridor
Authors
1 Civil Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247 667, IN
2 Transportation Planning Division, CSIR-Central Road Research Institute, New Delhi 100 025, IN
Source
Current Science, Vol 113, No 08 (2017), Pagination: 1586-1592Abstract
The main objective of this study is to estimate the capacity of hybrid bus rapid transit (BRT) corridor. By the term hybrid BRT corridor in context to this study, we mean a corridor in which buses have to operate in an exclusive environment as well as in a mixed traffic environment. Capacity is an important parameter to estimate corridor and system performance. Therefore to evaluate the same, Ahmedabad BRT system was chosen in the present study. On the basis of boarding alighting data, the busiest route comprising both segregated (exclusive environment) and unsegregated (mixed traffic environment) stretch was selected. For estimating the capacity, an empirical method was adopted. Bus lane capacity for segregated stretch and unsegregated stretch was estimated as 243 buses/h and 101 buses/h respectively. The overall capacity value of hybrid BRT corridor was minimum of the two, i.e. 101 buses/h. After estimating the capacity so obtained, the effect of mixed traffic environment on overall corridor capacity was observed.
Further, an attempt was made to estimate capacity using conventional Greenshield model on a mid-block section. Following this, the results of two approaches namely, empirical model capacity and capacity using Greenshield model were compared. The capacity obtained at mid-block section of the segregated stretch was overestimated by 19.34% or 290 buses/h compared to that obtained using empirical method (243 buses/h).
Keywords
Hybrid Bus Rapid Transit, Greenshield Model, Population, Traffic.References
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