Benefits of Using Modern Axle Counters in CBTC and Light Rail Projects

2014 ◽  
Author(s):  
Gerhard Grundnig ◽  
Christian Pucher
Keyword(s):  
Public Transportation ◽  
Transportation Systems ◽  
Operating Costs ◽  
Transport Systems ◽  
Light Rail ◽  
Long Distance ◽  
Clear Trend ◽  
Track Circuits ◽  
Framework Conditions ◽  
Public Transportation Systems

Wheel detection and axle counting systems provide the basic information for track vacancy detection, for controlling level crossing systems and a range of switching tasks or trigger functions. This technology is established throughout the world for standard gauge railways and is increasingly replacing track circuits. The requirements and the framework conditions in rail-based public transportation systems do, however, differ significantly from those in the standard-gauge railway and long distance track sectors. Nevertheless, in this segment too there is a clear trend towards wheel detection and axle counting systems. New lines and projects are increasingly being equipped with modern axle counting systems due to the benefits in terms of functionality and operating costs. Nowadays even in railed public transport systems, there is a clear move from track circuit systems to wheel detection and axle counting technology.

scholarly journals A NEW PASSENGER ORIENTED PERFORMANCE MEASUREMENT FRAMEWORK FOR PUBLIC RAIL TRANSPORTATION SYSTEMS

2014 ◽  
Vol 26 (4) ◽  
pp. 299-311 ◽  
Author(s):  
Ali Sercan KESTEN ◽  
Kemal Selçuk Öğüt
Keyword(s):  
Public Transportation ◽  
Performance Index ◽  
Transportation Systems ◽  
Performance Comparison ◽  
Point Of View ◽  
Light Rail ◽  
Railway Systems ◽  
Measurement Framework ◽  
Individual Index ◽  
Public Transportation Systems

This paper presents a practical approach for monitoring public transportation systems' performance by focusing on customer evaluations. Within the framework of the developed method, 22 indicators are aggregated for 6 different measures, which are time, cost, accessibility and transfer, comfort, safety – security and quality of service respectively. Passenger Oriented Performance IndeX (POPIX) has been developed and applied to the Istanbul Metro, Light Rail and Tram systems. The goal of this research is to propose a new customer oriented performance index for transportation systems, enabling a reliable and objective base for monitoring system performance by setting performance goals and identifying priorities. Meanwhile, the proposed methodology also allows for the investigation of the performance changes of a particular transportation system and for performance comparison of different systems directly from the customer point of view. The data of the index is attained by the Customer Satisfaction Survey of Istanbul Public Railways' 2005, 2006 and 2007. The POPIX methodology has been defined and the corresponding POPIX scores are calculated for the systems investigated. Furthermore, the % POPIX concept has been developed for the comparison of different systems. Lastly, the shifted POPIX concept has been proposed for more reliable comparison between different years. The framework has been implemented to the public railway systems and individual index scores are calculated for each indicator, measure and overall system. The measures of cost, accessibility and transfer and comfort have lower index scores. Metro index scores are superior in comparison to the Tram and Light Rail for all the years analyzed.

scholarly journals Estimation of Satisfied Customers in Public Transport Systems: A New Methodological Approach

2010 ◽  
Author(s):  
Maria Morfoulaki ◽  
Yannis Tyrinopoulos ◽  
Georgia Aifadopoulou
Keyword(s):  
Customer Satisfaction ◽  
Public Transport ◽  
Public Transportation ◽  
Methodological Approach ◽  
Transportation Systems ◽  
Service Planning ◽  
Transport Systems ◽  
Transport Service ◽  
Public Transportation Systems ◽  
Public Transport Service

This paper addresses quality considerations in public transportation systems and, in particular, the relation between quality of public transport service and customer satisfaction. Its aim is to provide insights into the factors that affect transit-rider satisfaction and to present a model to calculate the probability of customer satisfaction. The proposed model identifies the most important attributes of public transport service quality that can be used for service planning.

Nice–Nastiness and Other Raced Social Interactions on Public Transport Systems

2015 ◽  
Vol 14 (3) ◽  
pp. 286-310 ◽  
Author(s):  
Gwendolyn Y. Purifoye
Keyword(s):  
Social Interactions ◽  
Public Transportation ◽  
Field Work ◽  
Racial Microaggressions ◽  
Color Blindness ◽  
Transportation Systems ◽  
Transport Systems ◽  
Open Spaces ◽  
Public Transportation Systems ◽  
Ethnographic Field Work

Research on public transportation systems has often focused on racialized and institutionalized dynamics that result in poor and ethno–racial minority neighborhoods being underserved. Few scholars have studied raced social interactions on the buses and trains themselves. In this article, I explore how legacies of racism are reproduced through raced social interactions on public buses and trains in Chicago. Drawing on over 3 years of ethnographic field work and interviews, this article demonstrates how ethno–racial minorities, particularly Blacks, experience racial hostilities that are often masked as nice–nastiness. Nice–nastiness is a type of individual expression that combines expressions of politeness with disdain and distancing. Nice–nastiness can be expressed as (1) pretending the “other” does not exist; (2) whispering and lowering one's voice; (3) standing instead of taking a seat; (4) letting others have space for auditory expression; and (5) pseudo–swagger. I locate nice–nastiness on the racial microaggressions and color–blindness continuum and show that this expressive tool is shaped, at least in part, by the closeness, confinement and mobility of public transportation, where escape is not possible, unlike in wide–open spaces. I use public transportation as a space to examine how raced behaviors are enacted in everyday life, and shaped by confinement and motion.

scholarly journals Virus Transmission Risk in Urban Rail Systems: Microscopic Simulation-Based Analysis of Spatio-Temporal Characteristics

2021 ◽  
pp. 036119812110101
Author(s):  
Jiali Zhou ◽  
Haris N. Koutsopoulos
Keyword(s):  
Public Transportation ◽  
Virus Transmission ◽  
Flow Characteristics ◽  
Transportation Systems ◽  
Transmission Risk ◽  
Microscopic Simulation ◽  
Spatial And Temporal Patterns ◽  
Subway System ◽  
Public Transportation Systems ◽  
The Impact

The transmission risk of airborne diseases in public transportation systems is a concern. This paper proposes a modified Wells-Riley model for risk analysis in public transportation systems to capture the passenger flow characteristics, including spatial and temporal patterns, in the number of boarding and alighting passengers, and in number of infectors. The model is used to assess overall risk as a function of origin–destination flows, actual operations, and factors such as mask-wearing and ventilation. The model is integrated with a microscopic simulation model of subway operations (SimMETRO). Using actual data from a subway system, a case study explores the impact of different factors on transmission risk, including mask-wearing, ventilation rates, infectiousness levels of disease, and carrier rates. In general, mask-wearing and ventilation are effective under various demand levels, infectiousness levels, and carrier rates. Mask-wearing is more effective in mitigating risks. Impacts from operations and service frequency are also evaluated, emphasizing the importance of maintaining reliable, frequent operations in lowering transmission risks. Risk spatial patterns are also explored, highlighting locations of higher risk.

Station facilities and noise assessment: A multilevel analysis on light rail train stations

2021 ◽  
Vol 69 (4) ◽  
pp. 364-372
Author(s):  
Yalcin Yildirim ◽  
Diane Jones Allen
Keyword(s):  
Public Transportation ◽  
Transportation Systems ◽  
Urban Life ◽  
Light Rail ◽  
Noise Levels ◽  
Transit Systems ◽  
Message Boards ◽  
Sound Levels ◽  
Noise Assessment ◽  
Ticket Vending Machines

Noise is one of the most frequent consequences of traffic. Public transportation systems, such as the Dallas Area Rapid Transit (DART) authority provides various modes of transportation. Even though the availability of commuting service for the public is a boon to communities, mass transit systems are potential sources of excessive sound levels in daily urban life. This article examines the nexus between the transit station facilities of light rail train (LRT) stations and noise implications at both station and neighborhood scales by studying selected LRT stations. A multilevel linear analysis was conducted to understand the degree of train station amenities and neighborhood characteristics that affect sound levels. Using a type II sound pressure level (SPL)meter, sound measurements were obtained during the weekdays and weekends over several weeks. Upon examining the station amenities, and built environment and sociodemographic characteristics of the neighborhood, findings of this comprehensive research reveal significant implications for sound levels. Stations with ticket vending machines and informative message boards include a higher degree of significance on SPLs, while shelters, crew rooms, bike lockers, restrooms, and windshields are significantly and negatively associated with the noise levels. Additionally, neighborhoods with dense roads, higher speed limits, more neighborhood facilities, and a higher number of transit routes have an increased likelihood of noise levels. Recommendations include creating transformative policies for implementation, and approaches addressing noise for transit authorities, transportation engineers, and planners are presented. Planning and engineering aspects of comfort, aesthetics, safety, and public health, as train stations are daily use spaces for commuters and surrounding communities, should also be considered.

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