According to Article 142 of the Rules for Setting Road Traffic Signs, Markings and Signals
Construction signs are used to inform that there is construction ahead and vehicles should slow down or change lanes. They are set near the construction section.
Standard:70cm × 70cm
Enlarged:90cm × 90cm
Rectangular:100cm × 60cm
Sub-brand:25cm × 55cm
※Size, graphics, and text can be customized
★ With reflective properties
★ Remind road users to pay attention to road conditions
★ Improve construction safety
1. Used for road construction ahead.
2. Used for road closure ahead.
3. Used in road construction - vehicles are diverted and the diversion direction is indicated.
4. Used to close part of the lane and change the traffic to single lane control.
5. Used for mobile construction, to warn that the road ahead is temporarily under construction or maintenance and that drivers should slow down or change lanes. It should be hung behind construction vehicles and machinery, with two orange flags inserted diagonally on the back or flashing lights added to a conspicuous position on the vehicle body.