7.16Direction signs in tunnels for toll roads#
Direction signs within tunnels for toll roads are to be designed with the special colour scheme for toll roads (as per the previous sections); however, they may require special design considerations with respect to reducing their size, due to the space constraints typical inside a tunnel environment. These considerations / relaxations are only applicable to direction signs located within the tunnels and not for direction signs on approach to tunnels.
The relaxations are primarily applied to reduce the space (size) requirements of the direction sign design without limiting the effect of the white on green and yellow on blue colour schemes. The following direction sign design relaxations may be considered (as appropriate for the location and space constraints):
- the coloured border around patches within other coloured backgrounds may be omitted; for example, just a blue patch with yellow text and no yellow border within a green background and the reverse for a green patch with white text and no border within a blue background
- the TOLL patch within the toll coloured panel may be omitted
- the route identifier may be omitted
- the inclusion of both the destination(s) and the street name(s) for exits or destinations through the tunnel may be relaxed, such that either (rather than both) may be displayed (whichever is more applicable at that location) – in some cases, the information on consecutive signs may alternate between the destination(s) and the street name(s), and
- exit numbers may be omitted from direction signs within tunnels.
Figure 7.16 shows examples.
