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T.P.D.M. V.2.3<br />

(Al/2001)<br />

3.10.3 Signing and Signalling for Tunnels<br />

3.10.3.1 The signing and signalling for Tunnels should conform to Volume 3.<br />

3.10.4 Lighting for Tunnels<br />

3.10.4.1 More lighting should be provided at the entrance of tunnel than is usually provided within,<br />

to enable motorists in the daytime to adapt more quickly to the darker environment inside it<br />

from the relatively bright environment outside. It is particular important from road safety<br />

point of view.

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