Robert Prinz
@prinzrob.bsky.social
1.6K followers 320 following 8.5K posts
Advocacy Director at BikeEastBay. See me for bicycle culture & transportation infrastructure news on the sunny side of the Bay. My posts are my own.
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prinzrob.bsky.social
I will always like your sunset photos. Always.
prinzrob.bsky.social
We need to stop approaching this as a transportation issue as a opposed to a land use & housing issue. Marin has caused the problem for themselves by pricing out lower income workers. Enabling more traffic will only exacerbate the inequities.

bsky.app/profile/prin...
prinzrob.bsky.social
@mtcbata.bsky.social An HOV lane on the Richmond-San Rafael Bridge isn't going to fix this. At best it's ineffective at addressing the issue, & at worst it exacerbates the problem by taking attention away from real solutions.

You had an opportunity to be responsible and truthful, and you failed.
"Population Loss
Analysis: More people are leaving Marin County than moving in
Figure 1. Net Migration Rate for Marin County - 2010 to 2023
Overall net migration (in- versus out-moves per 1,000 households) and net migration by household income for those making above and below 50% AMI (~$75k).
20
5.2 0-2.34
-5.6
-20
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023
More than 50% AMI
4.7
Overall
-18.4
Less than 50% AMI
-33.5
Above zero = more people moving in. Below zero = more people moving out. Chart: Tim Thomas.
Source: U.S. Census Bureau, 2023 American Community Survey 1-Year Estimates." "The population is notably aging.
There is a deficit of working-age adults (25-44 years) and young families who cannot afford to live in Marin, leading to workforce shortages that require 64% of workers to commute from outside the county. Continued declines in this age group lead to declining school enrollment and closures that further deters families and working age adults from moving to Marin." "18.4 per 1,000 households left Marin County between 2010 and 2023, with more lower-income households leaving than higher-income households (33.5 per 1,000 households). The data suggests that:

‍More economically vulnerable residents from Marin are forced to leave, while wealthier households can still move into and remain in the county. 
‍Marin experienced a loss of local labor, requiring many local workers to commute long distances from outside the county."
Reposted by Robert Prinz
ianwalker.bsky.social
"The single most important behaviour, design or regulation for creating streets conducive to walking and cycling, was physical separation between the modes"

We've got a new study out, learning from a broad mixture of street users, planners and designers

www.sciencedirect.com/science/arti...
Highlights
    For marginalised street users mode separation is the key to human-scale movement.
    Streets conducive to walking and cycling have functional, safe and accessible design.
    Professionals must approach street design, regulation and user behaviour holistically.
    Combinations of influencing factors persuade people to either use or avoid a street.
    There are no easy fixes to the public realm that will work for all non-drivers.
prinzrob.bsky.social
Yikes, thanks for the heads up. Shattuck is so wide, meaning more exposure during crossings and higher car speeds.

I'm excited about the quick-build road diet & separated bikeway coming to Adeline in Berkeley soon. The city should expand this to Shattuck ASAP.
Reposted by Robert Prinz
mayoradenaishii.bsky.social
Why electric bikes are everywhere in Berkeley

REMEMBER: If you would like to have your own e-bike, Berkeley residents can enter monthly lottery to win rebate of up to $1,500 to buy one!
Why electric bikes are everywhere in Berkeley
Residents of all ages and abilities are taking to electric bikes — used for commutes, school drop-offs, grocery trips and joy rides.
www.berkeleyside.org
prinzrob.bsky.social
I encounter far too many middle aged public servants these days striving for relevancy through "innovation", without pausing long enough to ask why.
prinzrob.bsky.social
Municipal public works departments are not in competition with private industry, their goal isn't to make a profit. Why on earth would they try to mimic the market's worst austerity features which sacrifice service for marginal cost savings?
prinzrob.bsky.social
And in the meantime Marin is actively *losing* lower income residents, making the problem worse not better. No amount of lanes will solve this. It’s ultimately a land use & housing problem, not a transportation problem.

bsky.app/profile/prin...
prinzrob.bsky.social
@mtcbata.bsky.social An HOV lane on the Richmond-San Rafael Bridge isn't going to fix this. At best it's ineffective at addressing the issue, & at worst it exacerbates the problem by taking attention away from real solutions.

You had an opportunity to be responsible and truthful, and you failed.
"Population Loss
Analysis: More people are leaving Marin County than moving in
Figure 1. Net Migration Rate for Marin County - 2010 to 2023
Overall net migration (in- versus out-moves per 1,000 households) and net migration by household income for those making above and below 50% AMI (~$75k).
20
5.2 0-2.34
-5.6
-20
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023
More than 50% AMI
4.7
Overall
-18.4
Less than 50% AMI
-33.5
Above zero = more people moving in. Below zero = more people moving out. Chart: Tim Thomas.
Source: U.S. Census Bureau, 2023 American Community Survey 1-Year Estimates." "The population is notably aging.
There is a deficit of working-age adults (25-44 years) and young families who cannot afford to live in Marin, leading to workforce shortages that require 64% of workers to commute from outside the county. Continued declines in this age group lead to declining school enrollment and closures that further deters families and working age adults from moving to Marin." "18.4 per 1,000 households left Marin County between 2010 and 2023, with more lower-income households leaving than higher-income households (33.5 per 1,000 households). The data suggests that:

‍More economically vulnerable residents from Marin are forced to leave, while wealthier households can still move into and remain in the county. 
‍Marin experienced a loss of local labor, requiring many local workers to commute long distances from outside the county."
prinzrob.bsky.social
Emeryville has a significant amount of vacant lab space & quite a few stalled out development projects currently. The Sutter campus is a saving grace for them now, but it's an outlier.
prinzrob.bsky.social
Also my track record of distrust for “Save ________” campaigns goes unblemished.

bsky.app/profile/prin...
prinzrob.bsky.social
I know there are exceptions, but from experience my reaction to any “Save _______” campaign is immediate & intense distrust.
dtc.bsky.social
tldr: this ballot measure is to block 345+ low income homes from being built on what is currently a parking lot. It brings me back to when I was looking at daycares and learned there was a shortage because staff can’t afford to live anywhere - which is how I learned about this YIMBY stuff
prinzrob.bsky.social
The people posting those flyers either don’t know of the Berkeley Elmwood neighborhood’s repulsive history of weaponizing downzoning in support of racial exclusion, or they embrace it.

belonging.berkeley.edu/sites/defaul...
“A postcard from ca. 1915 depicts a residence in the Elmwood district of Berkeley. Elmwood Park was the first Berkeley subdivision to be assigned the exclusive single-family residential zoning designation. Duncan McDuffie of the Mason McDuffie Company, which created the neighboring Claremont subdivision, advocated for exclusive single-family zoning in Elmwood out of concern that a lack of public zoning could lead to Glaremont becoming surrounded by "incompatible" uses that would affect his subdivision's property values. Gourtesy of Berkeley Public Library.
The real estate industry's advocacy for zoning was driven by tightly intertwined interests in generating profit and maintaining racially exclusive areas. Real estate developers, who had often developed large tracts of dozens or hundreds of homes, feared that the allowance of people of color would lower the sale prices of the homes, a concern that white homeowners also voiced. Historian David Freund illuminates the racial underpinnings of zoning:
Zoning's original intent must be understood in the context of early twentieth-century racial politics, when enthusiasm for the new science of land-use economics converged with assumptions about racial, specifically eugenic, science. Most early zoning advocates believed in racial hierarchy, openly embraced racial exclusion, and saw zoning as a way to achieve it. But they formulated strategies and sketched out a language for justifying segregation that focused on practical, supposedly nonideologi-cal considerations. 129”
prinzrob.bsky.social
If a driver can’t see/slow/yield to a pedestrian with the legal right of way in a crosswalk then they’re going too fast for the conditions, regardless of the speed limit.

It’s absurd that this is at all in question. I hope that teen’s family sues.
prinzrob.bsky.social
Especially egregious in Berkeley's Elmwood district, which is the birthplace of zoning as a tool for racial exclusion in the US.
prinzrob.bsky.social
Update that Berkeley has now added a slight curb on top of this previously completely flush traffic circle. Not ideal, but better.
prinzrob.bsky.social
On the International Blvd bus rapid transit route AC Transit even insisted on pedestrian signal button actuation for people to get from the sidewalk to the median bus stops, w long 1-2 minute wait times. Most people cross against the signal & don't wait, but injury crashes have occurred as a result.
prinzrob.bsky.social
Part of the conflict is with AC Transit, which insists that Oakland use pedestrian walk signal actuation on major corridors in order to speed up transit service. This also happens to exactly overlap with Oakland's business & retail districts where the most pedestrian activity happens.
prinzrob.bsky.social
Other that that, the new protected bikeway on Fruitvale Ave is a great connection from BART.

Next year Alameda will add on to that w bike lanes on the Fruitvale bridge & a protected segment on Tilden Way to the Cross Alameda Trail at Clement.
prinzrob.bsky.social
Yep, the free water shuttle is great! No service on Mondays or overnight, but it’s made such a difference for bike/walk connectivity from Downtown/JLS.
prinzrob.bsky.social
Gotta throw Alameda in there too for good measure.
prinzrob.bsky.social
It was nice to see these new quick-build paint/post sidewalk extensions along Mission Blvd through Downtown Hayward.

Lots more is needed, so check out & weigh in on Hayward’s Downtown Loop study:

fp.mysocialpinpoint.com/hayward-safe...

@bikehayward.bsky.social
prinzrob.bsky.social
Between BART & Amtrak Contra Costa currently has 13 of the 16 required stations right? That limit doesn’t bode well for Martinez’s train station aspirations, or further eBART expansion.