The mere possibility that a SF County Transportation Authority study could result in a 'border' charge (congestion toll) to drive into SF from San Mateo County has the latter floating their own competing toll for motorists entering San Mateo County.
The 'southern gateway' option is what has the southern county, San Mateo, so upset. Alternative options would focus only on the downtown district and would apply to motorists entering from any direction.
"Instigating what one Peninsula politician said would be a "border war," some San Mateo County officials said they would try to implement a toll to enter the county from the north during rush hour if San Francisco enacts a similar entrance fee for its city. The threat by Peninsula leaders is an effort to persuade San Francisco leaders to shelve their plan.
The toll proposal has Peninsula commuters irate over the possibility of having to pay up to $1,500 a year to get to work, and local leaders are fighting back.
From SF Chronicle: Toll scenarios ready for scrutiny: "San Francisco supervisors, acting in their role as Transportation Authority commissioners, are scheduled to decide Tuesday (Dec. 14) whether to halt or endorse further evaluation of a proposal to impose a toll for driving in certain areas of the city during peak commute periods. Details of the project can be found at www.sfmobility.org".
Thanks to The Roundup
FULL STORY: Peninsula threatens toll in response to San Francisco

Maui's Vacation Rental Debate Turns Ugly
Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

In Urban Planning, AI Prompting Could be the New Design Thinking
Creativity has long been key to great urban design. What if we see AI as our new creative partner?

King County Supportive Housing Program Offers Hope for Unhoused Residents
The county is taking a ‘Housing First’ approach that prioritizes getting people into housing, then offering wraparound supportive services.

Researchers Use AI to Get Clearer Picture of US Housing
Analysts are using artificial intelligence to supercharge their research by allowing them to comb through data faster. Though these AI tools can be error prone, they save time and housing researchers are optimistic about the future.

Making Shared Micromobility More Inclusive
Cities and shared mobility system operators can do more to include people with disabilities in planning and operations, per a new report.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
planning NEXT
Appalachian Highlands Housing Partners
Mpact (founded as Rail~Volution)
City of Camden Redevelopment Agency
City of Astoria
City of Portland
City of Laramie