Marcel Moran
@marcelmoran.com
San Francisco 🌁
City Planning, Sustainable Transportation, Spatial Science. Union Member. Banner by Bellows.
City Planning, Sustainable Transportation, Spatial Science. Union Member. Banner by Bellows.
Pinned
Marcel Moran
@marcelmoran.com
· Jul 29
*Scaling Pedestrian Crossing Analysis to 100 Cities*
For better decisions about pedestrian infrastructure, we need data that is both accurate to the block level + scaled up to entire cities. Our new pre-print, pursues this with an advanced computer-vision model
arxiv.org/abs/2507.20497
(1/5)
For better decisions about pedestrian infrastructure, we need data that is both accurate to the block level + scaled up to entire cities. Our new pre-print, pursues this with an advanced computer-vision model
arxiv.org/abs/2507.20497
(1/5)
Valencia curb-adjacent (and protected) bike lanes have been excellent. San Francisco should apply the same treatment to many more busy streets!
Checking out the Valencia St bike lane. Unbelievable how much drama there was to get a parking protected bike lane here. More bikes and scooters have passed us than cars and there's still plenty of space for car parking, parklets and 2 travel lanes.
November 25, 2025 at 2:52 AM
Valencia curb-adjacent (and protected) bike lanes have been excellent. San Francisco should apply the same treatment to many more busy streets!
@hannahbeckler.bsky.social really impressed by your data-center reporting project. Sharing it in my GIS class tomorrow 🥳
November 25, 2025 at 1:24 AM
@hannahbeckler.bsky.social really impressed by your data-center reporting project. Sharing it in my GIS class tomorrow 🥳
The point I desperately want to get across is that how we *enforce* speed limits has altered American's understanding of the limits themselves. sf.streetsblog.org/2025/11/24/o...
November 24, 2025 at 11:55 PM
The point I desperately want to get across is that how we *enforce* speed limits has altered American's understanding of the limits themselves. sf.streetsblog.org/2025/11/24/o...
Last week, the New York Times listed the fact that Waymo driving the speed limit was a *downside*
I dug into how much that shows our understanding of road safety is broken:
I dug into how much that shows our understanding of road safety is broken:
November 24, 2025 at 11:40 PM
Last week, the New York Times listed the fact that Waymo driving the speed limit was a *downside*
I dug into how much that shows our understanding of road safety is broken:
I dug into how much that shows our understanding of road safety is broken:
Two weeks from today! Should be a super fun conversation on the intersection of imagery analysis and city planning with me and Prof. Ayda Kianmehr, and Prof. Maryam Hosseini. Free and open to the public: sjsu.zoom.us/webinar/regi...
November 24, 2025 at 6:28 PM
Two weeks from today! Should be a super fun conversation on the intersection of imagery analysis and city planning with me and Prof. Ayda Kianmehr, and Prof. Maryam Hosseini. Free and open to the public: sjsu.zoom.us/webinar/regi...
Noticing 19th St Oakland BART has labeled (numbered) exits. Good practice for wayfinding!
November 24, 2025 at 5:35 PM
Noticing 19th St Oakland BART has labeled (numbered) exits. Good practice for wayfinding!
We really need to hook up farmers market vendors to the grid - because running these for hours ain't it
November 22, 2025 at 9:07 PM
We really need to hook up farmers market vendors to the grid - because running these for hours ain't it
Reposted by Marcel Moran
Insane but true fact: making US roads as safe as Canadian, Australian, or European roads would save more lives than eliminating murder from the US.
November 21, 2025 at 3:01 AM
Insane but true fact: making US roads as safe as Canadian, Australian, or European roads would save more lives than eliminating murder from the US.
I very rarely go to San Francisco's Union Square shopping district. If even a quarter of its streets were pedestrianized it would become so much more interesting!
Keep this in mind when people claim cars mean business — closing Central #Madrid to cars over holidays resulted in a 9.5% boost in retail spending on its main shopping street: STUDY.
There was also a 71% drop in air pollution.
Via @carltonreid.com in @forbes.com. #citymakingmath #citiesforpeople
There was also a 71% drop in air pollution.
Via @carltonreid.com in @forbes.com. #citymakingmath #citiesforpeople
Closing Central Madrid To Cars Resulted In 9.5% Boost To Retail Spending, Finds Bank Analysis
City of Madrid significantly boosted the takings of its shops and restaurants last Christmas by banning cars from the CBD, finds an analysis by Spain's second largest bank.
www.forbes.com
November 21, 2025 at 7:02 PM
I very rarely go to San Francisco's Union Square shopping district. If even a quarter of its streets were pedestrianized it would become so much more interesting!
Reposted by Marcel Moran
It sucks that we have to write this same article over and over again every year, but I always appreciate it when larger media outlets do it, even if they never quite hit the most important point: that we won't solve this without confronting car dependency itself.
The deadliest roads in America
The number of pedestrians killed by vehicles has increased in the U.S., with road infrastructure and inadequate safety measures among key contributing factors.
www.washingtonpost.com
November 20, 2025 at 3:42 PM
It sucks that we have to write this same article over and over again every year, but I always appreciate it when larger media outlets do it, even if they never quite hit the most important point: that we won't solve this without confronting car dependency itself.
Reposted by Marcel Moran
NEW: Sean Duffy frequently calls safety his “top priority” as transportation secretary. But I spent months wading through regulatory notices and found something far different: that USDOT has been delaying, weakening and killing dozens of safety rules, many opposed by the transportation industry.🧵
November 20, 2025 at 12:36 PM
NEW: Sean Duffy frequently calls safety his “top priority” as transportation secretary. But I spent months wading through regulatory notices and found something far different: that USDOT has been delaying, weakening and killing dozens of safety rules, many opposed by the transportation industry.🧵
Pretty day on campus
November 20, 2025 at 12:05 AM
Pretty day on campus
Reposted by Marcel Moran
You gotta pay more for houses with walkability because we don't build nearly enough of them...
Walkability shouldn't be a "perk"
It should be the default
Walkability shouldn't be a "perk"
It should be the default
November 19, 2025 at 10:55 PM
You gotta pay more for houses with walkability because we don't build nearly enough of them...
Walkability shouldn't be a "perk"
It should be the default
Walkability shouldn't be a "perk"
It should be the default
Powerful cartography and reporting in this piece:
www.nytimes.com/interactive/...
www.nytimes.com/interactive/...
November 19, 2025 at 6:42 PM
Powerful cartography and reporting in this piece:
www.nytimes.com/interactive/...
www.nytimes.com/interactive/...
Are there any imminent plans for @caltrain.com 22nd Street Station to receive a ramp or elevator?
November 19, 2025 at 5:26 PM
Are there any imminent plans for @caltrain.com 22nd Street Station to receive a ramp or elevator?
Reposted by Marcel Moran
Huge news, Caltrain riders! Next Generation Clipper will be launching on December 10th
— bringing contactless payments and easier account management. 💳
Learn more of what this means for you at https://www.caltrain.com/clipper .
— bringing contactless payments and easier account management. 💳
Learn more of what this means for you at https://www.caltrain.com/clipper .
November 18, 2025 at 6:00 PM
Huge news, Caltrain riders! Next Generation Clipper will be launching on December 10th
— bringing contactless payments and easier account management. 💳
Learn more of what this means for you at https://www.caltrain.com/clipper .
— bringing contactless payments and easier account management. 💳
Learn more of what this means for you at https://www.caltrain.com/clipper .
These scaffolding designs are an upgrade, but the root problem is the law which demands too many of these in the first place. Glad Mamdani has specifically indicated he is going to remove many sidewalk scaffolds.
www.nytimes.com/2025/11/18/n...
www.nytimes.com/2025/11/18/n...
November 19, 2025 at 12:47 AM
These scaffolding designs are an upgrade, but the root problem is the law which demands too many of these in the first place. Glad Mamdani has specifically indicated he is going to remove many sidewalk scaffolds.
www.nytimes.com/2025/11/18/n...
www.nytimes.com/2025/11/18/n...
City is just gorgeous
November 18, 2025 at 11:39 PM
City is just gorgeous
Delaying approval of a much-needed bike/ped plan years in the making because of *THREE* comments in opposition. What is going on with the SFMTA board?!
thefrisc.com/bayview-stre...
thefrisc.com/bayview-stre...
Bayview Street Safety Project Delayed By 3 Complaints, Minutes Before a Vote
Calls for more outreach surprised SFMTA officials, but they shelved the plan’s approval for now. Will it jeopardize future funding?
thefrisc.com
November 18, 2025 at 10:35 PM
Delaying approval of a much-needed bike/ped plan years in the making because of *THREE* comments in opposition. What is going on with the SFMTA board?!
thefrisc.com/bayview-stre...
thefrisc.com/bayview-stre...
View of Market Street from SF's downtown IKEA
November 18, 2025 at 8:53 PM
View of Market Street from SF's downtown IKEA
Although - YIKES with this part of the article. Self-driving cars following the speed limit is NOT A DOWNSIDE:
November 18, 2025 at 5:48 PM
Although - YIKES with this part of the article. Self-driving cars following the speed limit is NOT A DOWNSIDE:
Having been deeply impressed with Waymo, very excited to try the Zoox fleet!
www.nytimes.com/2025/11/18/t...
www.nytimes.com/2025/11/18/t...
Self-Driving Taxis Are Catching On. Are You Ready?
www.nytimes.com
November 18, 2025 at 5:42 PM
Having been deeply impressed with Waymo, very excited to try the Zoox fleet!
www.nytimes.com/2025/11/18/t...
www.nytimes.com/2025/11/18/t...
Biking around SF daily, I just don't see the ambition from SFMTA or City Hall on our bike lane network. So few new projects, so few new protected bike lanes. The contrast to Paris, which is rolling out massive new protected lanes constantly, is so brutal.
November 18, 2025 at 2:59 AM
Biking around SF daily, I just don't see the ambition from SFMTA or City Hall on our bike lane network. So few new projects, so few new protected bike lanes. The contrast to Paris, which is rolling out massive new protected lanes constantly, is so brutal.
Reposted by Marcel Moran
At Land Use (again) and it's literally all the same people it always is (myself included)...like who are we fooling that the same 75 people showing up every time is "the will of the people"? What a sham public process is sometimes, sadly
November 17, 2025 at 9:48 PM
At Land Use (again) and it's literally all the same people it always is (myself included)...like who are we fooling that the same 75 people showing up every time is "the will of the people"? What a sham public process is sometimes, sadly