What's Driving You Crazy? The roundabouts at I-70 and Pecos What's Driving You Crazy? Roundabouts at Pecos/48th/I-70 and last updated 2021-05-25 09:25:57-04 I received two separate, but similar letters about the roundabout on Pecos Street at I-70. Cathy from Denver writes, âWhat's driving you crazy? The roundabout at Pecos/48th/I-70 is dangerous! The cars getting on near 48th do not yield, which makes it very difficult for cars coming off I-70 to get in the roundabout. I see a traffic light there in the future.â Jeremy from Denver writes, âWhat's driving you crazy? The roundabouts at I70 & Pecos. Every single time I drive west on W. 48th Avenue, people in the left lane for I-70 east will suddenly cut over to the right from inside the roundabout for the I-70 west ramp instead. People always seem to get confused at this roundabout since some parts are one lane and other parts of it are three lanes.â