Con Edison Basic Electric Practice Test 2026 - Free Electric Practice Questions and Study Guide

In a work zone, you first alert drivers that something ahead is changing, using advance warning signs. After those warnings, you need to establish and guide the actual flow of traffic through or around the site. Work zone cones serve this purpose by defining lane boundaries and a safe path for vehicles, making them the appropriate next item to install after the advance warning signs. Detour signs are used if traffic must be diverted to an alternate route, crosswalk markers relate to pedestrians, and speed limit signs may appear but do not immediately delineate the traffic path like cones do.