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Dual Rated Speeds Escalator in Rapid Transit System with Extended Ramping Up and Down KC Gan, LF Cai, SC Cheah, Hadi Wijaya, Melvyn Thong Land Transport Authority, Singapore Keywords: Dual rated speeds, automatic switching, rapid transit system, acceleration, ramping up, ramping down, vibration, jerkiness. Abstract. To cater for different needs of escalator operating speeds in rapid transit systems (i.e. higher rated speed of 0.75m/s during peak hours is for effective discharging of passengers while slower rated speed of 0.50m/s during off-peak hours is for elderly passengers), we have introduced the dual rated speed escalator. Conventionally, the switching between 2 rated speeds can be done either manually through a key switch or automatically when no passengers are detected on the escalators at pre-set timing. However, there is a possibility of not being able to change speed if there are constant passengers coming into the rapid transit station, taking the escalators. Therefore, this shortcoming will be overcome by setting up a schedule timetable to do the safe switching of escalator rated speeds with passengers riding on the escalators with extended ramping up and down without comprising any safety requirements. This paper presents the case studies conducted on an existing station where a performance–based approach was adopted. The timing for the speed ramping up/down between the 2 rated speeds has been increased to 30 seconds in order to reduce the acceleration which results in minimizing the acceleration (vibration) and the rate of change of this acceleration (jerk). The objective is to ensure that the passenger’s perception are imperceptible and do not experience any abnormal and sudden change of vibration and jerk during the switching of dual rated speeds with extended ramping up and down. -
Comparison Between Bus Rapid Transit and Light-Rail Transit Systems: a Multi-Criteria Decision Analysis Approach
Urban Transport XXIII 143 COMPARISON BETWEEN BUS RAPID TRANSIT AND LIGHT-RAIL TRANSIT SYSTEMS: A MULTI-CRITERIA DECISION ANALYSIS APPROACH MARÍA EUGENIA LÓPEZ LAMBAS1, NADIA GIUFFRIDA2, MATTEO IGNACCOLO2 & GIUSEPPE INTURRI2 1TRANSyT, Transport Research Centre, Universidad Politécnica de Madrid, Spain 2Department of Civil Engineering and Architecture (DICAR), University of Catania, Italy ABSTRACT The construction choice between two different transport systems in urban areas, as in the case of Light-Rail Transit (LRT) and Bus Rapid Transit (BRT) solutions, is often performed on the basis of cost-benefit analysis and geometrical constraints due to the available space for the infrastructure. Classical economic analysis techniques are often unable to take into account some of the non-monetary parameters which have a huge impact on the final result of the choice, since they often include social acceptance and sustainability aspects. The application of Multi-Criteria Decision Analysis (MCDA) techniques can aid decision makers in the selection process, with the possibility to compare non-homogeneous criteria, both qualitative and quantitative, and allowing the generation of an objective ranking of the different alternatives. The coupling of MCDA and Geographic Information System (GIS) environments also permits an easier and faster analysis of spatial parameters, and a clearer representation of indicator comparisons. Based on these assumptions, a LRT and BRT system will be analysed according to their own transportation, economic, social and environmental impacts as a hypothetical exercise; moreover, through the use of MCDA techniques a global score for both systems will be determined, in order to allow for a fully comprehensive comparison. Keywords: BHLS, urban transport, transit systems, TOPSIS. -
Study on Medium Capacity Transit System Project in Metro Manila, the Republic of the Philippines
Study on Economic Partnership Projects in Developing Countries in FY2014 Study on Medium Capacity Transit System Project in Metro Manila, The Republic of The Philippines Final Report February 2015 Prepared for: Ministry of Economy, Trade and Industry Ernst & Young ShinNihon LLC Japan External Trade Organization Prepared by: TOSTEMS, Inc. Oriental Consultants Global Co., Ltd. Mitsubishi Heavy Industries, Ltd. Japan Transportation Planning Association Reproduction Prohibited Preface This report shows the result of “Study on Economic Partnership Projects in Developing Countries in FY2014” prepared by the study group of TOSTEMS, Inc., Oriental Consultants Global Co., Ltd., Mitsubishi Heavy Industries, Ltd. and Japan Transportation Planning Association for Ministry of Economy, Trade and Industry. This study “Study on Medium Capacity Transit System Project in Metro Manila, The Republic of The Philippines” was conducted to examine the feasibility of the project which construct the medium capacity transit system to approximately 18km route from Sta. Mesa area through Mandaluyong City, Ortigas CBD and reach to Taytay City with project cost of 150 billion Yen. The project aim to reduce traffic congestion, strengthen the east-west axis by installing track-guided transport system and form the railway network with connecting existing and planning lines. We hope this study will contribute to the project implementation, and will become helpful for the relevant parties. February 2015 TOSTEMS, Inc. Oriental Consultants Global Co., Ltd. Mitsubishi Heavy -
Passenger Rail Primer
Passenger Rail Primer Thurston Passenger Rail Workgroup November 2005 Passenger Rail Characteristics This document is intended as a primer introducing and familiarizing the reader with the basic definitions of passenger rail and providing a comparison of common transit services in 2005. It was developed to facilitate a discussion of passenger rail and other transit options in the Thurston Region, in preparation of a regional rail plan. In the next section, Passenger Rail Overview, the fundamental characteristics of light rail, commuter rail and intercity rail are covered. Complementary and Alternative Transit Options (primarily common bus transit choices) provides a wider transit context within which the passenger rail modes coordinate and compete. After investigating transit options individually, they are compared and contrasted in a chart of their characteristics, Summarizing the Continuum of Services. Other Rail Transit Technologies provides a brief overview of less extensively used rail options and the Appendices provide additional details and information. Additional resources the reader may want to consult include: • The American Public Transportation Association (APTA) website at www.apta.com • The Victoria Transportation Policy Institute (VTPI) website at www.vtpi.org • Bureau of Transportation Statistics (BTS) website at www.bts.gov Passenger Rail Overview Introduction Passenger rail modes may be distinguished from one another based on a variety of characteristics – level of service, technology, right-of-way and operations. These characteristics are discussed in more detail in the other sections of this chapter. Like other transit services, however, in the most basic sense passenger rail modes break down by three distinct geographies – local, regional, and statewide or interstate. -