APTA S-SEM-RP-011-09
Operational Strategies for Emergency Smoke Ventilation in Tunnels
Abstract
This White Paper establishes guidelines for emergency ventilation of tunnels in the event of a fire.
Keywords: equalization, suspension, wheel load equalization, wheel unloading
Summary
This standard establishes static wheel load equalization requirements to provide passenger equipment with the wheel unloading characteristics necessary to reduce the risk of low-speed wheel climb derailments. The Standard includes requirements for testing to verify compliance with the standard.
Document History
| Document Number | Version | Publication Date | Publication | Related Information |
|---|---|---|---|---|
| APTA SS-SEM-WP-013-10 | 03/15/2010 | Published | Current |
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