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