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Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...

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Diagram 2.9.2.3(a) - Location of first cross passageway <strong>in</strong> underground tra<strong>in</strong>ways<br />

Diagram 2.9.2.3 (g) – Cross-over between enclosed tra<strong>in</strong>ways<br />

Diagram 2.9.4.1(a) - Dry ma<strong>in</strong> system <strong>in</strong> underground or enclosed tra<strong>in</strong>way<br />

Station A<br />

UNDERGROUND TRAINWAY<br />

4-way breech<strong>in</strong>g <strong>in</strong>let<br />

CROSS PASSAGEWAY<br />

Ground<br />

60m<br />

≤ 500 m<br />

4-way breech<strong>in</strong>g <strong>in</strong>let<br />

Underground tra<strong>in</strong>way Land<strong>in</strong>g valve<br />

Gate valve at mid-po<strong>in</strong>t of tra<strong>in</strong>way<br />

(Strapped and padlocked <strong>in</strong> the ‘close’ position)<br />

STATION<br />

PSD RETURN DOOR<br />

Station B<br />

PLATFORM<br />

PUBLIC AREA<br />

PSD RETURN DOOR<br />

<strong>Standard</strong> <strong>for</strong> <strong>Fire</strong> <strong>Safety</strong> <strong>in</strong> <strong>Rapid</strong> <strong>Transit</strong> <strong>Systems</strong> 145

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