Tim Welch
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tfwelch.com
Tim Welch
@tfwelch.com
urban planner, educator, transport nerd, data geek, dad
Happy Halloween!

The scariest thing about tonight isn't the costumes, it's the road safety stats.

Halloween sees a 30% spike in crashes involving people walking or cycling w/ 1/3 of these crashes between 4-8pm, peak trick-or-treating hours.

Drivers: slow down tonight so everyone gets home safe.
October 30, 2025 at 10:37 PM
No one send me an email! I don't want to mess up this perfect inbox number.
Also, really don't send me an email. I clearly get too many!
October 27, 2025 at 8:50 PM
This is remarkable!
For the first time ever, London has met legal limits for nitrogen dioxide.

When I became Mayor, we were told it would take 193 years. We did it 184 years earlier than expected.

Cleaner air means a healthier city and big savings for the NHS.
October 1, 2025 at 9:57 PM
Spotted Auckland‘s new all-electric ferry the Te Komiti, in the wild!
October 1, 2025 at 7:28 PM
Haha - well, AI is getting wierd...
October 1, 2025 at 1:15 AM
Reposted by Tim Welch
NEW STARTER PACK! This time I’m hoping to encourage and support global urbanists from OUTSIDE North America here on Bluesky, so hopefully this will help! Who’ve I missed? Just joined? Let me know! I’ll keep updating, so please keep checking & sharing this pack! And let’s try using #GlobalUrbanists.
Urbanists OUTSIDE North America Worth Following!
Join the conversation
go.bsky.app
September 28, 2025 at 7:54 AM
Processing connected vehicle and crash data like it's the 1970s...
September 30, 2025 at 12:23 AM
The NZ Road Safety platform has been redesigned with an improved interface. I've unified the real-time road death tracker, dashboard with current and historical data, and the calendar showing daily road fatalities since 2020.

Explore the data and analysis here: nzroads.tfwelch.com
September 30, 2025 at 12:14 AM
4D chess move.
First, central gov't passes laws forcing contractors to use excessive road cones
Then, central gov't complains about contractors' excessive use of cones & creates a hotline to report
Finally, councils start charging contractors for excessive road cones
www.stuff.co.nz/nz-news/3607...
Ashburton mayor plans own road cone crackdown with $10 fee
“Anything to identify the overuse of road cones is good,” Ashburton Mayor Neil Brown says.
www.stuff.co.nz
June 11, 2025 at 11:03 PM
Two orange distractions leading the news today…
June 7, 2025 at 12:13 AM
Reposted by Tim Welch
May 28, 2025 at 8:05 PM
I could teach an entire course on the importance of infrastructure.

Oh wait, I do!

In fact I teach 3 courses on infrastructure and it’s still not enough to cover how important this stuff is for our cities and people.
May 22, 2025 at 11:21 PM
Transforming a car-dominated train station with one small project:
✓ Thousands of e-scooter/e-bike trips
✓ Hundreds of bikes parked (up from just one!)
✓ Public transport use increased
✓ 36.9 tonnes CO₂-eq emissions prevented

Partnerships + community = people-first spaces
May 21, 2025 at 9:27 PM
How NOT to code in R 😬
May 12, 2025 at 11:29 PM
A graphic from AT's 2016 Auckland Cycling Account.

And yet, our national government says that no one wants their rates to pay for cycling infrastructure...
May 12, 2025 at 10:18 PM
Reposted by Tim Welch
Great example of why flex posts and paint are bullshit
SDOT’s Georgetown to Downtown protected bike lane isn’t even open yet and it’s already failing.
May 11, 2025 at 10:55 PM
Auckland is wildly off track in reducing its transport emissions, which account for about 41% of its greenhouse gas inventory.

Appreciate the opportunity to add my 2¢ to this story, and if you don't already follow @eloisegibson.bsky.social, do it now!
www.rnz.co.nz/news/environ...
Auckland prepares for climate change realities
However, figures show our biggest city is way off target.
www.rnz.co.nz
May 11, 2025 at 9:56 PM
I saw a few lanes closed for resurfacing.

Traffic didn’t collapse. The city kept moving.

If this much road space can go unused without chaos, what else could we do with it?

People and place over cars and concrete.
May 8, 2025 at 8:45 PM
📊 New Zealand Road Deaths Calendar: Visualising the human cost of road crashes day by day.

Each colored square = a day someone didn't make it home.

Explore the interactive version: nzroads.tfwelch.com/calendar/

#RoadSafety #NZ #DataViz
April 30, 2025 at 12:36 AM
Auckland trains have been shut down 48 days in just 4 months—40% of the time. While the network upgrades continue, buses keep the city moving. Here's what 1 hour of service looks like, animated in real time.
April 24, 2025 at 7:56 PM
Post-holiday traffic is back, and so are the road fatalities.
Be safe out there, please.
nzroads.tfwelch.com
April 23, 2025 at 5:27 AM
One crisis is easing.
Another rolls on — quietly, daily, and deadly.
April 22, 2025 at 1:16 AM
100 lives lost on New Zealand roads this year.

But here’s something rare: we’ve just gone 3 days without a single road death — the longest stretch in a long time.

Over Easter, just 1 fatality was recorded — still tragic, but fewer than usual.

Every day without a death counts.
nzroads.tfwelch.com
April 21, 2025 at 11:42 PM
Hilarious headline hardly a hard-hitting happening.
April 15, 2025 at 5:44 AM