Topics In Demand
Notification
New

No notification found.

Blog
Positive Train Control (PTC): The Need of an Hour for US Railroads

January 10, 2018

518

0

Amtrak Cascades train 501, on its inaugural journey, traveling from Seattle to Portland derailed on Dec. 18 near Tacoma while navigating a curve. Data obtained from trailing locomotive suggests that Amtrak was operating at a speed of 80mph on a track segment with a speed restriction of 30mph. The train was powered by Siemens Diesel Charger Locomotive in the front and GE P42 Genesis Locomotive from the rear end of the Talgo passenger cars. Based on the preliminary investigation by the rail officials, the emergency brakes were deployed automatically but were not manually activated by the engineer and positive train control (PTC) — a technology that automatically slows down and stops a speeding train had been installed on the right-of-way, but it was neither operational nor activated at the time of journey.

With this incident, it brings the focus back to the mandate enforced by Federal Railroad Association on the installation of PTC on US Railroads. The original (unfunded) mandate stipulated conformance by the end of 2015, but the slow rate of implementation resulted in pushing the due date to December 2018. Also, in 2012 the Federal Railway Administration modified the mandate to eliminate the need for implementation on lines that don’t carry passengers or toxic materials.

What is Positive Train Control? What does it do? How does it help?

Positive train control refers to systems designed to meet the mandate outlined in the US Rail Safety Improvement Act of 2008. Safety is the primary objective of a PTC system, which is intended to provide train separation and prevent train-to-train collisions, over-speed derailments, and incursions into roadway work limits that could jeopardize rail worker safety.

PTC works by slowing and stopping trains that are cruising over posted speed limits–that technology might have helped prevent anPositive incident. The systems can be added to existing lines. The implementation also allows trains to go faster due to improvements in communication, train management, and operational efficiency. PTC is designed to prevent accidents like the Amtrak crash in Seattle and Philadelphia.

PTC system components include onboard computers, wayside interface units, ground & wireless communication, office servers, etc. Train’s onboard computer stores all the required data (speed limits, constructions, hazards). During the journey, the onboard computer communicates with the dispatchers and wayside signals. PTC operates by sending and receiving a continuous stream of wireless signals about train location, speed, and direction. PTC systems utilize advanced technologies including digital radio links, global positioning systems, and wayside computer control systems that help dispatchers and train crews safely managing train movements.

What is holding back the installation and activation of Positive Train Control?

Interoperability: Creating a system that is completely interoperable with PTC is a challenge. It means that PTC must work for any train on any track and should be compatible with other railroads with different PTC systems.

Testing and Upgrades: PTC requires substantial upgrades to the four main segments of rail operations: the server, locomotives, wayside signals, and communications components. Each element must undergo rigorous testing before it can be deployed. The limited number of suppliers that provide technical design services, particularly for signal systems, is hampering the quick installation of PTC technology.

Bulk Deployment: PTC involves the deployment of several technologies pieces which makes it complicated to execute and integrate the system.

Expensive and Time Intensive: PTC is both expensive and time-intensive to install. Not only must every locomotive operating on a PTC route have the necessary hardware in place, but equipment also needs to be stationed at key locations along the line.

These tragic events highlight not only the urgent need for Positive Train Control measures but also the extreme difficulty the rail industry is facing making those technologies a reality.

“Reprinted with permission, original blog was posted here”. You may also visit here for more such insights on the digital transformation of industry.

 About ARC Advisory Group (www.arcweb.com): Founded in 1986, ARC Advisory Group is a Boston based leading technology research and advisory firm for industry and infrastructure.

For further information or to provide feedback on this article, please contact lkanickaraj@arcweb.com

 About the Author:

Pranav Misal
Analyst

Pranav’s focus areas at ARC include Industrial Internet of Things (IIoT), Transportation (Railways, Marine, Aviation), Smart Technology, and Asset Performance Management.

Pranav joined ARC after graduating with an MBA Marketing degree in June 2017.  Prior to ARC, he worked for three years as a technical marketing engineer at Forbes Marshall in Pune, India.  He was responsible for product marketing of condition monitoring systems, and his target industries were oil and gas, power, defense, and transportation.  At Forbes Marshall, he conducted market research and competitive analysis to identify potential markets and effectively used value-based pricing strategies for market penetration.


That the contents of third-party articles/blogs published here on the website, and the interpretation of all information in the article/blogs such as data, maps, numbers, opinions etc. displayed in the article/blogs and views or the opinions expressed within the content are solely of the author's; and do not reflect the opinions and beliefs of NASSCOM or its affiliates in any manner. NASSCOM does not take any liability w.r.t. content in any manner and will not be liable in any manner whatsoever for any kind of liability arising out of any act, error or omission. The contents of third-party article/blogs published, are provided solely as convenience; and the presence of these articles/blogs should not, under any circumstances, be considered as an endorsement of the contents by NASSCOM in any manner; and if you chose to access these articles/blogs , you do so at your own risk.


Founded in 1986, ARC Advisory Group is the leading technology research and advisory firm for industrial, energy, and infrastructure markets. We are globally-respected experts in operational technology (OT), information technology (IT), and engineering technologies (ET). Our operations-centric view gives us the unique ability to help our clients navigate the complex business issues inherent in industrial markets and increasingly digital and disrupted economies. ARC delivers the critical market guidance, data, and thought leadership needed to identify, create, and execute successful business strategy.

© Copyright nasscom. All Rights Reserved.