Dangerous Intersection Causes Multiple Vehicular Fatalities

Case Overview

This case involves several deaths that occurred at the intersection of two poorly-lit county roads in Utah over the course of three years. Both roads had speed limits of 60 mph but the intersection was only a 2-way stop. The most recent accident was a side-impact collision that killed two small children. It was suspected that motorists tended to approach the intersection too fast to make note of the stop signs. County residents had suggested implementing a 4-way stop or introducing rumble strips. These suggestions were brought up by numerous residents on various occasions and in public forums, such as town hall meetings and social media pages. An expert in roadway design was sought to address the hazards of the intersection and opine on possible changes to make the area safer.

Questions to the Civil Engineering expert and their responses

For an intersection such as this, what additional safety features would you typically recommend?

I would check the stopping sight distance to the intersection to review the visibility of the existing stop signs. I would check the corner sight distance to confirm vehicles stopped at the signs can see the approach of vehicles not required to stop. Possible changes might include an upgraded sign package including larger signs, advance warning signs, and/or a flashing yellow beacon. Roundabouts are a solution that the state department of transportation considers to eliminate broadside accidents.

About the expert

This highly qualified expert had previously worked for the California Department of Transportation (Caltrans) for 34 years. During his time at Caltrans, he held multiple positions, including as a Civil Engineer, Transport Engineer, an A&E District Coordinator, Design Coordinator, and in the Traffic Operations Liaison. He has published three articles about design standards, one which specifically relates to urban freeways. This expert had previously delivered lectures for 16 years regarding design standards, the importance of shoulders, and interchange design at the California Department of Transportation. Currently, he is an Associate Civil Engineer at a Large Traffic Engineering/Forensics Firm, and is responsible for civil engineering investigations, specifically ones involving freeways and highways.

E-133297

Specialties:

Civil Engineering