The DMJM Harris summarized results of the study can be downloaded here. This summary is based on the Boyer traffic analysis on the Heber City website. While that analysis contained a lot of numbers, it was short on conclusions. A private citizen hired a firm for an interpretation of the numbers.
The Conclusion: "The addition of project (Boyer development) traffic significantly increases the delay at the two intersections that operate poorly, and also cause the 910 South/100 West and US-40 and/1000 South intersection to change from an acceptable LOS (level of service) to LOS F."
Here's UDOT's definition of LOS F: "LOS F represents the breakdown of traffic flow – “failure” of the system.The condition exists wherever the amount of traffic approaching a point exceeds its capacity. Queues form behind such locations and vehicles may progress in a stop-and-go fashion. It can take two or more cycles to wait through a signal operating at LOS F."
The Harris study also reports that "Based on the Heber City criteria all intersection should be improved to LOS C or better." (Does this mean Heber City did not understand the numbers - or were ignoring them?)
As a result of this report another enterprising citizen has started a Petition to "request that the Utah Department of Transportation (UDOT) WITHHOLD APPROVAL of the Boyer/Heber City access agreement for the US-40/US-189 intersection in Heber City, UT until a safer plan is in place."
The petition is available at various local businesses and online for signatures.
UDOT held a meeting in Heber in 2007 where the intersection was discussed a report of the meeting is available here. The complete official minutes are here.
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