Questions and Answers
Which exit is labeled as 'EXIT 1AB' on the station layout?
What is the primary function of the blue light station within the layout?
Which areas are primarily focused on emergency exits in the station layout?
In terms of accessibility features, what area is indicated in the layout for providing emergency access?
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Which element of the station layout indicates a safety feature for emergencies?
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What is the purpose of the 'BLUE LIGHT STA.EMERGENCY' indicated in the layout?
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Where is the nearest emergency exit located relative to the 'BLUE LIGHT STA.EXIT 1A'?
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Which area can be identified as accessible based on the layout?
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What important aspect of transportation planning does the layout primarily address?
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Which of the following is essential when addressing safety protocols in station layouts?
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Where are the Blue Light Stations (BLS) located?
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What voltage is the emergency power cable that runs on the auxiliary level?
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How many emergency exit stairs are mentioned in the station layout?
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What is the purpose of the auxiliary power rooms located on the Ancillary Level?
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What kind of system controls the ventilation in the station?
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Study Notes
Tunnel Infrastructure and Safety Features
- Each tunnel is equipped with 6” wet standpipes featuring 2 ½” outlets located every 250 feet for fire safety.
- Blue Light Stations (BLS) are situated at both ends of the Upper and Lower Platforms; these activate the undercar deluge system and shut down traction power.
Emergency Equipment
- Emergency Equipment Room 106 is positioned at the East end of the Lower Platform, near Emergency Stairs 1/2/3 ABC.
- Train Control & Communications (TC&C) Room 339 and the Fire Control Panel (FCP) are located at the West end of the Ancillary Level.
Power Hazards
- There exists a 750 VOLT DC third rail located outside the track, presenting electrical hazards.
- An emergency power cable, rated at 34,500 VOLT AC, runs approximately 6 feet above track level on the AL side, supplying station power through an emergency generator if there is a DWP failure.
Auxiliary Power Rooms
- Two Auxiliary Power Rooms: RM 302 (East) and RM 354 (West).
- Traction Power Substation Room 332 is centrally located on the Ancillary Level.
Ventilation System
- Emergency fans are installed at each station end for ventilation, with a computer-controlled system operational for various scenarios; manual control is available at the Emergency Management Plan (EMP).
- Ancillary areas lack mechanical ventilation but utilize room dampers for air control.
Blast Relief Shafts
- Two Blast Relief Shafts (BRS) are situated, one adjacent to each end of the station: one near the North Fire Department Connection (FDC) on Vermont Ave and another on Wilshire, east of Shatto Place.
Emergency Response Infrastructure
- Multiple emergency Blue Light Stations are distributed throughout the platforms to facilitate quick reporting and response during emergencies.
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Description
This quiz covers the emergency systems and protocols for managing tunnel safety features, including standpipes, Blue Light Stations, and emergency equipment rooms. Understand the layout and functionality of these critical safety components and their locations within the facilities.
