WisDOT had previously completed improvements to the corridor to combine and restrict access along the corridor.  High traffic signal cycle lengths, up to 180-seconds, were deployed to accommodate throughput on the highway.  Select signalized intersection movements operated undesirably at LOS E/F conditions.

The development of approximately 800,000-sf in the southwest corner of the busy Bluemound & Calhoun intersection was anticipated to add nearly 11,400 daily trips to intersections with movements operating poorly.  Additionally, an alternative was developed to see if a new traffic signal would be beneficial along the corridor to accommodate development.   TADI developed a new tool to supplement traffic analysis models to determine the sufficiency of an intersection to process traffic when LOS D is unattainable due to high signal cycles.  As a result, it was shown that the new traffic signal would result in fewer improvements and have negligible impact tin moving highway traffic east/west on Bluemound.

The following tasks were performed:

• Data collection
• Trip generation, distribution and assignment
• SYNCHRO modeling
• Alternatives analysis
• Development of a capacity analysis methodology/tool for congested intersections
• TIA Report (approved)