Design World

  • Home
  • Technologies
    • 3D CAD
    • Electronics • electrical
    • Fastening & Joining
    • Factory automation
    • Linear Motion
    • Motion Control
    • Test & Measurement
    • Sensors
    • Fluid power
  • Learn
    • Ebooks / Tech Tips
    • Engineering Week
    • Future of Design Engineering
    • MC² Motion Control Classrooms
    • Podcasts
    • Videos
    • Webinars
  • LEAP AWARDS
  • Leadership
    • 2022 Voting
    • 2021 Winners
  • Design Guide Library
  • Resources
    • 3D Cad Models
      • PARTsolutions
      • TraceParts
    • Digital Issues
      • Design World
      • EE World
    • Women in Engineering
  • Supplier Listings

NTSB Safety Alert Highlights Improving Visibility on the Rails

By atesmeh | January 6, 2015

Share

The National Transportation Safety Board issued a Safety Alert that focuses on the visibility of railroad signals.

On railroads, light-emitting diode (LED) railroad signals may mask nearby incandescent signals, preventing incandescent signals from being visible to train crews.

If LED and incandescent signals are installed in close proximity to one another, the LED signal may appear brighter or closer, causing crews to confuse the sequence of the signals as they approach. This effect may be more pronounced the closer the train gets to the signals.

A Safety Alert is a brief information sheet that pinpoints a particular safety hazard and offers practical remedies to address the issue. This Alert highlights actions to avoid accidents by identifying locations where the close spacing of signals may cause a signal to either mask or visually dominate another signal, especially at locations where LED and incandescent light units have been installed in close proximity.

These actions include evaluating the railroad computer aided dispatching software to prevent confusion when lining routes non-sequentially at multiple control points; conducting a hazard analysis that includes testing signal visibility with input from train crews; and through the use of configuration management.

The Safety Alert is available here..


Filed Under: Industry regulations

 

Related Articles Read More >

ids-industrial-camera-manufacturer.sustainability-3
IDS focuses on sustainability in shipping
Part 5: Motion control + MQTT, OPC-UA, and other protocols for cloud services
Facebook CEO Zuckerberg Calls for More Outside Regulation
Musk’s Boring Company Calls it Quits on LA Tunnel, Instead Focuses on Hyperloop

DESIGN GUIDE LIBRARY

“motion

Enews Sign Up

Motion Control Classroom

Design World Digital Edition

cover

Browse the most current issue of Design World and back issues in an easy to use high quality format. Clip, share and download with the leading design engineering magazine today.

EDABoard the Forum for Electronics

Top global problem solving EE forum covering Microcontrollers, DSP, Networking, Analog and Digital Design, RF, Power Electronics, PCB Routing and much more

EDABoard: Forum for electronics

Sponsored Content

  • Global supply needs drive increased manufacturing footprint development
  • How to Increase Rotational Capacity for a Retaining Ring
  • Cordis high resolution electronic proportional pressure controls
  • WAGO’s custom designed interface wiring system making industrial applications easier
  • 10 Reasons to Specify Valve Manifolds
  • Case study: How a 3D-printed tool saved thousands of hours and dollars

Design World Podcasts

April 11, 2022
Going small with 3D printing
See More >
Engineering Exchange

The Engineering Exchange is a global educational networking community for engineers.

Connect, share, and learn today »

Design World
  • Advertising
  • About us
  • Contact
  • Manage your Design World Subscription
  • Subscribe
  • Design World Digital Network
  • Engineering White Papers
  • LEAP AWARDS

Copyright © 2022 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Design World

  • Home
  • Technologies
    • 3D CAD
    • Electronics • electrical
    • Fastening & Joining
    • Factory automation
    • Linear Motion
    • Motion Control
    • Test & Measurement
    • Sensors
    • Fluid power
  • Learn
    • Ebooks / Tech Tips
    • Engineering Week
    • Future of Design Engineering
    • MC² Motion Control Classrooms
    • Podcasts
    • Videos
    • Webinars
  • LEAP AWARDS
  • Leadership
    • 2022 Voting
    • 2021 Winners
  • Design Guide Library
  • Resources
    • 3D Cad Models
      • PARTsolutions
      • TraceParts
    • Digital Issues
      • Design World
      • EE World
    • Women in Engineering
  • Supplier Listings