Yellow retroreflective material must be used
On routes which limitations exist due to road works, diversion routes are introduced & signs are used with yellow background & black wordings. The reason for this colour difference is higher visibility
of yellow & better warning to the drivers to be more cautious. Regulations for route guidance signs are also applicable here & the only difference is in the colour of the wordings & background. It must be noted that even though these signs are temporary, we have no right to decrease their technical quality e.g. by not using retroreflective material, but on the contrary, the emphasis here is in the use of High Intensity & Diamond Grade material. It must be noted that the signs should be removed after the completion of road works & the route returned to normal condition.
Road works conducted at urban & suburban areas, are always faced with safety issues & accidents. On the other hand, maintenance of the roads is one of the necessities of preserving these national investments. Application of traffic safety regulations during road works is the best method to prevent accidents & reduce fatalities & financial losses. Signs mounted in such workshops must have the following specifications:
