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Palo Alto committee debates mobility work plan as staff weighs GHG and VMT data limits
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Summary
City staff told the Climate Action and Sustainability Committee that Palo Alto has met interim VMT targets driven largely by pandemic‑era shifts but cautioned that measurement uncertainty complicates long‑term planning; members and public commenters pressed for GHG‑per‑dollar prioritization, clearer baselines and careful scoping of micromobility and downtown parking measures.
City staff presented an update on mobility goals and a draft 2026–27 mobility work plan to the Climate Action and Sustainability Committee on Nov. 20, 2025, outlining near‑term projects such as enhanced bikeways, a micro‑mobility feasibility study, parking pricing policy, traffic signal modernization and housing‑element actions aimed at supporting active transportation.
"We're looking at about 20% [mode share] according to the latest census data," senior transportation planner Katie Heuser said, and staff recommended increasing the percentage of local work trips made by walking, biking and transit from 19% to 40% while reducing vehicle miles traveled (VMT) by 12% from a 2019 baseline by 2030. Heuser told the committee staff currently see "at least a 25% reduction" in VMT through 2023 compared with 2019 but cautioned that some pandemic‑era gains may not persist.
Why it matters: transportation is the largest single source of the city's local greenhouse‑gas emissions. Committee members said accurate, transparent baselines and credible estimates of GHG and VMT impacts are essential to prioritize projects and spending.
Committee members pressed staff on measurement choices. Staff described a shift from a VTA/consultant modeling approach to Google's Environmental Insights Explorer (EIE) for the 2022 inventory because Google adopted the Global Protocol for Community‑Scale Greenhouse Gas Inventories (GPC) methodology. "We definitely want to have an agreed upon baseline," a staff member said, and Christine Long, the city's sustainability manager, confirmed that the mode‑share baseline for that indicator is 2019 (not 1990), noting that historic 1990 breakdowns lack granular mode‑shift data.
Public commenters asked the committee to prioritize projects by climate impact and cost effectiveness. David Cole of Carbon Tree Palo Alto called for including decommissioning costs for gas appliances and for promotion of e‑bikes, suggesting a rent‑to‑own approach to expand uptake. Ken Kaye urged using a greenhouse‑gas‑reduction‑per‑dollar metric and warned that shared micromobility programs can require one to three full‑time staff to administer.
On micromobility, staff said preliminary findings show potential in denser nodes — downtown and near Caltrain and Stanford — but the service's climate effectiveness depends on trip substitution patterns and scale. Several committee members said micromobility could be helpful if the study scopes realistic operating models and staff costs; others cautioned it may be a lower‑priority investment than capital bikeways.
Parking policy drew skepticism. Members noted unused garage capacity downtown and raised concerns about potential retail impacts; staff recommended focusing on enforcement, color‑zone adjustments and targeted pricing strategies rather than immediate broad downtown rate increases.
The committee asked staff to return with clearer ranges for expected GHG and VMT impacts (high/low) and greater transparency on methods and assumptions, and to bring back a draft work plan and implementation options in January. The committee also heard that staff will host a community workshop on community electrification and related issues Dec. 13 at Mitchell Park.
Next step: staff will refine metrics and return to the committee with a draft work plan and additional analytic detail in the new year.
