Normally I'd agree but this highway was built as a highway in the '50s a new route where there formerly was no road. It's not like a main street that slowly grew into a major road. The only points where pedestrians cyclists cross the road (it's limited access, nobody is walking or biking on it) are at the aforementioned traffic lights. Based on my experience as a pedestrian I suspect the lights are about the same safety as walking biking past on/off ramps.

This is king of going off on a tangent though.