48 in. Tree Work Ahead Sign

A tree work ahead sign gives drivers advance notice that a crew, chipper and falling brush are around the next bend. The 48 in. size is the common full-size format for roadside advance warning.

Setting up advance warning

Drivers need time to slow down and move over before they see a chipper in the lane. A tree work ahead sign placed well ahead of the work area does that job. How far ahead depends on road speed and local rules, so follow the traffic control plan for the road you are on, which in the US is usually based on the MUTCD.

If you are buying a tree work ahead sign with stand, choose a stand rated for the sign size and wind, and use the legs on soft shoulders. Weight the base, never with rocks or loose material that can become a hazard.

Check the sign face for scratches, fading and dirt before each job. A sign that cannot be read at speed is not doing its job, and many jurisdictions expect signs to meet reflectivity requirements.

Part of a complete setup

The sign is the first thing drivers see. After it come channelizing devices, a taper and the work area itself, marked with drop zone cones around the tree. Crew on the ground should wear high-visibility vests. Take signs down or cover them when the crew leaves so drivers keep trusting them.

Plan where the sign goes before the truck arrives, especially on busy roads. Setting signs from the far side of the truck keeps the crew out of traffic while they work.