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

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A.3.3 For a multi-service centre plat<strong>for</strong>m, as shown <strong>in</strong> Table D-1 to<br />

Table D-5,<br />

(a) The calculated tra<strong>in</strong> load <strong>for</strong> the peak direction is<br />

determ<strong>in</strong>ed <strong>for</strong> both the a.m. and the p.m. peak periods<br />

accord<strong>in</strong>g to the <strong>for</strong>mula:<br />

[ Peak hour L<strong>in</strong>k Load ÷ 60 x surge factor x tra<strong>in</strong><br />

headway x 2 ], and<br />

(b) The calculated tra<strong>in</strong> load <strong>for</strong> the off-peak direction is<br />

determ<strong>in</strong>ed <strong>for</strong> both the a.m. and the p.m. peak periods<br />

accord<strong>in</strong>g to the <strong>for</strong>mula:<br />

[ Peak hour L<strong>in</strong>k Load ÷ 60 x surge factor x tra<strong>in</strong><br />

headway ], and<br />

(c) The maximum <strong>for</strong> the calculated tra<strong>in</strong> load shall be the<br />

tra<strong>in</strong> crush load, and<br />

(d) The entra<strong>in</strong><strong>in</strong>g load <strong>for</strong> the tra<strong>in</strong> service that arrived at<br />

the plat<strong>for</strong>m <strong>for</strong> the peak direction is determ<strong>in</strong>ed <strong>for</strong><br />

both the a.m. and the p.m. peak periods accord<strong>in</strong>g to the<br />

<strong>for</strong>mula:<br />

[ Peak hour Entra<strong>in</strong><strong>in</strong>g figure ÷ 60 x surge factor x tra<strong>in</strong><br />

headway x 2 ], and<br />

(e) The entra<strong>in</strong><strong>in</strong>g load <strong>for</strong> the other tra<strong>in</strong> service <strong>for</strong> the<br />

peak direction is determ<strong>in</strong>ed <strong>for</strong> both the a.m. and the<br />

p.m. peak periods accord<strong>in</strong>g to the <strong>for</strong>mula:<br />

[ Peak hour entra<strong>in</strong><strong>in</strong>g figure ÷ 60 x surge factor x<br />

( tra<strong>in</strong> headway x 2 - time lag ) ], and<br />

(f) The entra<strong>in</strong><strong>in</strong>g load <strong>for</strong> the tra<strong>in</strong> service that arrived at<br />

the plat<strong>for</strong>m <strong>for</strong> the off-peak direction is determ<strong>in</strong>ed <strong>for</strong><br />

both the a.m. and the p.m. peak periods accord<strong>in</strong>g to the<br />

<strong>for</strong>mula:<br />

[ Peak hour Entra<strong>in</strong><strong>in</strong>g figure ÷ 60 x surge factor x tra<strong>in</strong><br />

headway ], and<br />

(g) The entra<strong>in</strong><strong>in</strong>g load <strong>for</strong> the other tra<strong>in</strong> service <strong>for</strong> the<br />

off-peak direction is determ<strong>in</strong>ed <strong>for</strong> both the a.m. and<br />

the p.m. peak periods accord<strong>in</strong>g to the <strong>for</strong>mula:<br />

[ Peak hour entra<strong>in</strong><strong>in</strong>g figure ÷ 60 x surge factor x<br />

( tra<strong>in</strong> headway - time lag ) ], and<br />

(h) The transfer loads between services are determ<strong>in</strong>ed <strong>for</strong><br />

both the a.m. and the p.m. peak periods accord<strong>in</strong>g to the<br />

sequence of tra<strong>in</strong> services. (See example on the pattern<br />

of transfer loads on plat<strong>for</strong>m <strong>in</strong> Figure 2.)<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> A-5

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