Final answer:
The leading cause of rear-end collisions in work zones is typically driver error, which includes driving at inappropriate speeds for the specific conditions of the work zone.
Step-by-step explanation:
The major cause of rear-end crashes in work zones is often attributed to driver error, such as driving at speeds that are inconsistent with the surrounding traffic. This may involve either driving slower or faster than other vehicles. In work zones specifically, the presence of construction equipment, changes in traffic patterns, and the potential for unexpected stops can increase the likelihood of rear-end collisions if drivers are not paying close attention and adhering to the speed limits and traffic signs. While the lack of work zone barricades and construction equipment obstructing the driver's view can also play a role, driver error because of inappropriate speed in response to the work zone conditions is a significant factor.