National Academy of Sciences | 150 Year Anniversary

Questions? Call 800-624-6242

| Items in cart [0]

The National Academies Press

Rights & Permissions

topleft topright

TCRP Report 130: Shared Use of Railroad Infrastructure with Noncompliant Public Transit Rail Vehicles: A Practitioner's Guide (2009)
Transit Cooperative Research Program (TCRP)

Citation Manager

Transportation Research Board. "Reader's Guide to the Final Report." TCRP Report 130: Shared Use of Railroad Infrastructure with Noncompliant Public Transit Rail Vehicles: A Practitioner's Guide. Washington, DC: The National Academies Press, 2009.

Please select a format:

BibTeX EndNote RefMan


Page
11
bottomleft bottomright
Page
11
Front Matter (R1-R12)
Research Objective (1-1)
Report Output (2-2)
Business Case (3-4)
Train Control Technology (5-5)
Grade Crossing Hazards (6-6)
Requirements for Concurrent Shared-Track Operations (7-7)
Practical Shortcuts (8-8)
Advancing the Shared-Track Concept (9-9)
Introduction (10-10)
Reader's Guide to the Final Report (11-11)
Scope of Work for Project A-27 (12-12)
Research Approach (13-13)
Characteristics of a Shared-Track Corridor (14-14)
Freight Operations Perspective (15-16)
Why Share Track? (17-17)
The Business Model (18-18)
Business Model Structure (19-19)
The Business Case (20-20)
Shared-Track - A Practical Business Case Structure (21-22)
Role of the Designated State Safety Organization (23-23)
Methods for Risk Analyses (24-24)
Equal Risks, Equivalent Safety (25-25)
Underpinning the Case for Shared-Track (26-26)
The Role of Command and Control Systems in Shared-Track (27-27)
1) Train Control System Functions (28-28)
2) Train Control System Design Parameters (29-29)
4) Train Control - Emerging Technology - PTC and CBTC (30-30)
System and Integration Testing - Vendor Role (31-31)
8) Issues Unique to Train Control for Shared-Track (32-32)
Auxiliary Safety Critical Systems (33-33)
9) Fail-Safe Train Separation (34-35)
2) Regulatory and Practical Requirements (36-37)
4) Functional Design of a Communications System (38-38)
2) Regulatory Mandates (39-39)
4) The Rulebook (40-40)
5) Rules and Procedures for Shared-Track (41-41)
Background (42-42)
2) Diesel Multiple Units and Electrical Multiple Units (43-43)
2) Crash Energy Management (CEM) (44-44)
3) Propulsion System (45-45)
5) Other Considerations (46-46)
Vehicles for Shared-Track Applications (47-47)
3) Standardization (48-48)
Applying Technology to Shared-Track Operations - A Brief Guide (49-50)
Shared-Track Operations - The North American Experience (51-51)
2) Former Private Freight Railroad Owner Becomes a Privileged Tenant (52-52)
4) Pressure to Commingle Is Heaviest on Lines with Higher Freight Densities* - A Review of Different Solutions (53-53)
6) Transit Operators Choosing to Avoid Commingling Sacrificed Service Quality and Efficiency (54-54)
Business Case Template (55-55)
Alternatives Analysis (56-56)
Reasons to Consider Noncompliant Equipment (57-57)
Service Characteristics to Justify the Choice of a Light Rail System (58-58)
Structures Considerations (59-59)
Cost and Ridership Analyses (60-60)
Cost Analysis for Signal System Alternatives (61-62)
System Capital Cost Assessment (63-63)
System Operating Cost Assessment (64-65)
Alternatives Evaluation (66-66)
Introduction (67-67)
Risk Analysis and Modeling Methodology (68-70)
Results and Risk Analysis Findings (71-72)
Safety Case Findings (73-73)
San Diego Trolley (74-74)
Achievable Incremental Steps (75-75)
Practical Shortcuts For Shared-Track (76-76)
Demonstration Project (77-77)
Application of Risk Analyses Methodology to the Demonstration Project (78-78)
Data Collection Plan (79-79)
San Diego Trolley, Inc. (80-80)
Barriers to Implementation (81-81)
Shared Track - The Potential Market (82-82)
Shared-Track Operation - An Evolving Concept (83-84)
Bibliography (85-86)
Appendix 1 - Abbreviations (87-87)
Appendix 2 - Glossary of Shared-Track Definitions (88-92)
Appendix 3 - TCRP A-27 Research Task Descriptions (93-97)
Appendix 4 - Relative Cost Comparison of Train Control Systems (98-99)
Appendix 5 - Sample Operating Rulebook Table of Contents (100-100)
Appendix 6 - Vehicle Cost Drivers (101-101)
Appendix 7 - Some Examples of Current Production LRV and MU Vehicle Types (102-105)
Appendix 8 - Shared-Track System Status (106-106)
Appendix 9 - Shared-Track Configuration and Operational Alternatives (107-109)
Abbreviations used without definitions in TRB publications (110-110)

Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.

OCR for page 11
Shared-Use: Background and Rationale for the Research 11 ­ Task 10--Hypothetical Case Study ­ Task 11/12 Consolidated Report--Demonstration Program and Recommended Practices As mandated, the report includes the output of the project tasks, synthesizes prior research on related topics, and describes advantages and disadvantages of shared-track operations, and fulfills the project objectives: 1. Provides a business case for shared use of non-FRA-compliant public transit vehicles (e.g., light rail) with freight operations; 2. Suggests business models for such an operation; 3. Identifies and evaluates available and emerging technology, operating procedures, and tech- niques that could be used to minimize the risks associated with sharing of track between non- FRA-compliant public transit rail vehicles and freight railroad operations; and 4. Serves as a guide for identifying the issues that may be faced by new project sponsors of a shared use operation. This Practitioner's Guide is designed to be accessible to a variety of users of diverse exper- tise, background, responsibilities, and interests. The reader is supplied with a "to-do" list of specific actions and guidelines that can serve as a "primer" for the development of a transit system that shares track with a freight operator. A checklist includes advantages and disadvan- tages of different options and notes the constraints, barriers and pitfalls that might impede progress. Defining Shared-Track The focus of this research is "shared-track". This phrase implies cotemporaneous use of the same track and corridor by light rail transit vehicles and conventional freight equipment. The terms "shared use" and "shared corridor" are apt to be used interchangeably, but "shared-track" and "shared use" will be utilized here to describe concurrent train operations with these two dif- ferent categories of equipment. In the context of this research the terms incidental corridor or route sharing is implied also, but the defining characteristic is true commingled operation of these two types of equipment on the same track. Reader's Guide to the Final Report The guide below is intended as a tool to assist in locating or selecting specific topics and issues for review. The work program task products are condensed and organized into five sections. This portion of the report is preceded by an Executive Summary, which concentrates and highlights the key findings. The Appendices, which contain specific information, or details that illustrate or expand on report content, follow the report itself. Information is displayed in five major groups: background for the research effort, institutional elements, the technological and opera- tional facets, a practitioner's guide, and suggestions on advancing the concept. Chapter 1--Shared-Use: Background and Rationale for the Research Introductory and background material. Includes this "Reader's Guide", followed by brief contextual information about shared-track. The section defines the operational concept, dis- cusses the typical freight characteristics and lists attributes that make a route an attractive can- didate for shared-track operation. A description of the research approach recounts its aims and focus, and the results of the team effort to identify, obtain, and organize the information used to prepare this handbook. The preparatory work includes a literature search; contacts with vendors and operators; and surveys and interviews with operators, suppliers, and regulators.