01031559

Component

The Linear Expansion (i.e. lengthening) of light rail (LRT) and rail rapid transit (RRT) lines causes a lengthening of trip times beyond what might be considered reasonable for these transit modes, and also impacts capacity along the line. Service patterns on most LRT and RRT double track lines can generally be characterized as “plain vanilla”, i.e., all trains make all stops. The Second Edition of the Transit Capacity and Quality of Service Manual is one example of an emergent industry standard that makes no mention of express operations on LRT other than to note occasional use of “demand stops”, although several examples are available in current practice. More specifically, this document inadequately describes the benefits and methods of various types of express service, herein referred to as “expedited” service. In fact, various forms of expedited service have historically been provided on two track systems, and a number of such significant operations exist today. This paper presents the methods, benefits and system design (i.e. track, station, signaling) characteristics which are essential if expedited services are to be provided. It suggests that further research be conducted into documenting current expedited service practices and their benefits for incorporation into future editions of Manual. It particular suggests that more attention be focused on the importance of the relationship between rail systems and railway operations in network design.

01020180

06-3072

English

25p

2006

Transportation Research Board 85th Annual Meeting

CD-ROM

Figures (9) ; References; Tables (2)

Double track; Express service; Light rail transit; Quality of service; Rail transit; Trip length

Transit Capacity and Quality of Service Manual

Demand stops; Scheduled service; Transit capacity; Trip time

Operations and Traffic Management; Passenger Transportation; Public Transportation; Railroads

Transportation Research Board Annual Meeting 2006 Paper #06-3072

TRIS, TRB

Mar 3 2006 11:12AM