If there are no reduced speed limit signs clearly posted within a work zone:

Question

Most work zones have signs alerting you to reductions in the speed limit through the work zone. The reduced speed limits are usually clearly posted within the work zone, but if there are no reduced speed limit signs, you should obey the normal posted speed limit.

Accepted Answer

You should obey the normal speed limit.

Answer

You should drive 15 mph slower than the posted speed limit.

Answer

You should drive 15 mph faster than the posted speed limit.