In the growing Fort Worth suburb of Colleyville, Texas, B&N conducted three traffic
studies aimed at finding solutions to ease congestion.
Pleasant Run Road/John McCain Road
B&N studied the crossroads of Pleasant Run Road and John McCain Road. During
peak hours, traffic volumes at this four-way stop intersection significantly exceed
capacity. Congestion is expected to increase with projected growth in the area.
Several intersection alternatives were analyzed, including conversion to a signalized
intersection, a two-lane roundabout, and a single-lane roundabout. The comprehensive
study included considerations such as safety, cost, traffic operations, noise, air
quality, right-of-way impacts, and aesthetics.
The project team recommended a single-lane roundabout. B&N presented the findings
and recommendations to City officials and facilitated a public meeting to present
and discuss the study and its findings to the community. B&N’s recommendations were
approved, detailed design was completed, and the roundabout was constructed.
Cheek-Sparger Road/Jackson Road
B&N also conducted a study for the intersection of Cheek-Sparger Road and
Jackson Road to determine traffic control and geometric improvements. The four-way
stop intersection has two-lane roads to the north, east and west and a five-lane
road to the south. Narrow shoulders, ditches, utilities, adjacent residential and
commercial tracts and a drainage culvert on the west leg were other considerations.
Observation and analysis showed that the intersection was severely deficient in
Two options were identified: a signalized intersection with left turn lanes and
a single lane roundabout with a northbound right turn lane. The City selected the
Cheek-Sparger Road/Martin Road
third traffic study was conducted for the intersection of Cheek-Sparger Road and
Martin Road to identify an intersection configuration that would accommodate future
This intersection currently operates as a two-way stop. Cheek-Sparger Road is a
undivided roadway at the intersection. Martin Parkway has northbound and southbound
stop controlled approaches. The southbound approach is treated as two lanes and
is separated from the single departure lane with a grass median. The northbound
approach has two lanes both entering and exiting the intersection.
Existing and 2020 traffic volumes were evaluated along with a signal with left turn
lanes and a single roundabout. Following the study, B&N recommended that the City
re-evaluate the intersection after improvements to an adjacent intersection were