US 40 and Interstate 70 in Kansas City

Jackson Curve in Kansas City

On I-70 in Kansas City there are two sharp curves, one at Benton Boulevard and the other at Jackson Avenue. In an attempt to get vehicles to slow down and observe the 45 mph advisory speed, warning signs and signals were installed. I'm pretty sure this occurred in 1994. They served their intended purpose for about six months. Now, it seems, drivers aren't paying attention to them.