Research and studies have found that motorists will drive on a street at a speed they feel comfortable with, regardless of the posted speed. Posting artificially lower speed limits does not slow traffic and can increase the potential for accidents. Research has shown that roadways are safer when all vehicles travel around the same speed, thus the need to appropriately sign the roadway. Engineering studies are used to determine the posted speed limits. If you have further questions about speed limits or speeding, please contact us at 702. 229.6331 or firstname.lastname@example.org.