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Board orders tighter TDM reporting and a July follow‑up to tackle Highway 390 congestion
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Summary
After reviewing the Teton Village TDM monitoring report, commissioners directed TVA to coordinate methodology with county staff, required a two‑year summer/winter report by July 30, 2026, and asked staff, TVA and Jackson Hole Mountain Resort to present corridor‑improvement recommendations to address safety and congestion on Highway 390.
The Teton County Board on Feb. 3 approved targeted changes to the Teton Village Area 1 Transportation Demand Management (TDM) monitoring process and asked staff and stakeholders for a concerted follow‑up to address congestion and safety on Wyoming Highway 390.
County staff recommended four actions: ensure TVA’s TDM consultant meets independently with county staff to align data collection and reporting methods; require the next monitoring report to include two full summers and winters of data and be submitted by July 30, 2026; have staff collaborate with TVA and Jackson Hole Mountain Resort to produce recommendations to improve safety and mitigate congestion on Highway 390 by that July deadline; and require TVA to standardize the method for counting unique employees so employer submissions are comparable.
Representatives from the Teton Village Association and Jackson Hole Mountain Resort urged modernization of the TDM measure‑of‑effectiveness (MOE) framework and cautioned that year‑to‑year anomalies (notably heavy powder days) and construction can distort peak‑hour counts. Staff and TVA agreed to refine methodology and to provide clearer multimodal reporting. Commissioners stressed they want faster, more actionable monitoring and emphasized coordinated work with START (regional transit) to expand capacity and consider fare strategies.
The board passed the motion unanimously and closed by asking for a July 2026 follow‑up report that will include two years of summer and winter monitoring data and concrete proposals for corridor and shuttle adjustments.
Next steps: TVA’s consultant will coordinate with county staff on data methodology; the July 30, 2026 monitoring report will seek to provide two years of summer/winter data and a staffing/employment methodology; staff, TVA and JHMR will deliver corridor and operational recommendations to the board.
