Temporary traffic-control sign
Detour to the left ahead
This rectangular orange advance sign warns that the designated temporary detour ahead turns to the left. Reduce speed, watch for work-zone traffic control, and prepare to follow the left detour.
Study guide
Connect this sign to practice
Advance detour notice: Detour to the left ahead. Compare its shape, placement and arrow with the other detour pairs before choosing whether to prepare ahead or turn onto the temporary route now.
Study guide
Compare the three detour sign pairs
These signs have different jobs: the orange diamonds warn that the temporary path shifts, the advance text panels announce a detour ahead, and the direction panels tell you to take the detour at the closure or decision point.
Now see it in questions.
Now practise how temporary path warnings, advance detour notices and decision-point directions differ in exam-style scenarios.
