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T.P.D.M.V.2.6<br />

(Al/2002)<br />

6.2.1.10 The provision of emergency crossings along Expressways should generally be in accordance<br />

with Section 3.4.8 of Chapter 3 of this Volume. However because of the higher operational<br />

speeds prevailing along these roads, careful consideration should be given to the provision<br />

of such facilities, as the gaps create particular hazards in the respect that they increase the<br />

risk of vehicles encroaching onto the opposite carriageway and that in the event that a<br />

vehicle strikes the end piece of any barrier in the central reservation, serious injury or<br />

fatality can result to the occupants of that vehicle. If on Expressways it is decided that<br />

emergency crossings are required they should preferably not be spaced closer than 3km<br />

apart and not be located near or at the bend of the Expressway. It should also be noted that<br />

the standard 10m width is totally inadequate in the event that contra flow working is<br />

anticipated, but it is not appropriate to increase this width to meet this contingency, see<br />

Section 3.9.3.

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