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Traffic Operations: LOS
What is Level of Service (LOS)?
LOS grades traffic delays (wait times) from A to F. Growth in McCall is anticipated to increase around 2-3% annually. Intersections in the project area currently operate at an acceptable level of service. We anticipate some specific intersection movements may degrade to a LOS F by 2050, the design year we use to assess future conditions if no action is taken (No Build).
No Build 2050: Side Street Intersections with SH-55
Traffic is anticipated to increase around 1% annually on side streets. SH-55 traffic flow would remain stable, but movements from side streets onto or across SH-55 would experience significant delays. Those locations are included on the map.
No Build 2050 Intersection Map
No Build 2050: Key Intersections
With no improvements, a variety of issues are predicted at existing intersections in the project area.​
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3rd Street and Deinhard Lane. A separate project studying stand-alone improvement for this intersection determined the right turn radius is not optimal for extra-large freight trucks (class WB-67), like some mining vehicles. That recommendation will be presented in this project as potential improvement for consideration.
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Lake Street and Boydstun Street. Drivers can experience long wait times to turn left at the stop sign on Boydstun St. onto Lake St. Should the corridor exchange occur, this delay would be further exacerbated without improvements. Potential options for improvements were developed in this project’s concepts.
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Mission Street at Deinhard Lane and Lake Street. At Deinhard Ln., traffic
traveling southbound may experience longer wait times to turn east. At Lake St., signal timing can be optimized in the future as traffic congestion increases.
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