Danville at 50,000: More Homes, More Cars, More Traffic

A Danville Mom’s view of growth, traffic, accountability – and what happens to the small-town character we were promised would be protected.

I am a Danville mom. Like a lot of parents here, I spend a ridiculous amount of my day in the car — school drop-off, pickup, sports, appointments, groceries and the daily adventure of trying to get across town when everybody else has apparently chosen the exact same moment.

That is why this does not feel like an argument about traffic studies to me. It feels like a much bigger question: Danville is adding homes, people and cars.

What is the town going to feel like when all of that growth is actually here?

Credit : Veritas

Sometimes I think Danville has discovered a magical way to make traffic disappear without making any cars disappear. A project gets studied, the trips are divided into peak hours and turning movements, the intersections still receive an acceptable grade, and the impact is called “less than significant.”

Maybe it makes perfect sense in a traffic report. But when I am sitting through a second light with kids asking why we are late again, “less than significant” starts to feel like somebody else’s definition of significant.

Credit : Vertias

Take Magee Preserve. Its traffic analysis estimated about 841 additional vehicle trips a day. Once those trips are divided into enough little pieces, 841 starts sounding almost harmless. Maybe I should try that with my next property-tax bill: divide it into tiny hourly pieces and tell the Town each one is less than significant.

But Magee is only one project. Four major projects alone add up to 451 residences: 37 condominiums at 600 Hartz Avenue, 167 homes at the Borel property on Fostoria Way, 47 townhomes at The Lanes and 200 apartments at Danville Village.

And here is the part that bothers me: residents do not experience development one project at a time.

We experience all of the traffic together, on the same streets.

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What Does Danville Look Like at 50,000 People?

Danville has about 43,300 residents today. The Town’s 2023-2031 Housing Element plans for at least 2,241 additional homes. That does not mean every one of those homes will be built. But if a large share are built and occupied, Danville could be moving toward 49,000 or 50,000 residents.

I do not sit in the school pickup line thinking about population projections. I think about whether I am going to make it to the next practice on time. But when somebody tells me Danville could be heading toward 50,000 people, I start wondering what that pickup line is going to look like five years from now. To me, 50,000 people means more cars in the school line, more grocery runs, more deliveries, more sports practices, more drivers heading toward I-680 and more people trying to use the same intersections at the same busy times.

Using a simple illustration — not a Town traffic forecast — 2,241 households generating six to eight vehicle trips a day would mean roughly 13,000 to 18,000 additional vehicle trips every day. They would not all use the same road. They would not all show up at once. But they have to go somewhere.

Camino Tassajara. Sycamore Valley Road. Diablo Road. San Ramon Valley Boulevard. Railroad Avenue. Hartz Avenue.

And these roads are not starting at zero. In 2017, Town counts showed roughly 28,500 vehicles a day on Sycamore Valley Road, 28,400 on Camino Tassajara, 22,600 on San Ramon Valley Boulevard, 14,200 on Diablo Road, 12,500 on Railroad Avenue and 11,200 on Hartz Avenue at specific count locations.

Those are old numbers, which is exactly the point. We need to know what they are now.

Count What Families Actually Experience

The Town is preparing its 2026 Townwide Traffic Count Program, including counts on the major streets many of us use every day. Good. Count them. Then please tell us something useful with the numbers.

But please do not just put the new numbers into another binder. I do not need another thick traffic study telling me an intersection technically works. Tell us what the numbers mean when the projects already approved, the projects being built and the housing being planned are considered together.

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I want to know the things parents actually notice. How long will the backups be? Will I get through the light in one cycle or two? How long will it take to get across Danville at 8 in the morning, at school pickup and at 5:30 in the evening? That is the traffic study I would actually read.

Credit: Veritas

Traffic does not arrive politely at 3:17 in the morning. It shows up when the rest of us do. That is when an extra line of cars matters. A turn lane fills. I miss the light. A ten-minute trip becomes twenty.

And traffic is not just about cars. A road can technically “work” while becoming less comfortable for a child riding to school, a parent pushing a stroller, an older resident crossing the street or someone using a wheelchair or walker.

The Town Council has repeatedly promised to protect Danville’s small-town character. I hope they mean more than nice landscaping and tasteful beige buildings. Small-town character is also being able to get your kids to school without budgeting an extra twenty minutes because nobody can tell you what traffic will look like after thousands of new homes are built. It means downtown still feels like downtown, families can move around town without planning their day around congestion, and our streets still feel safe for people who are not inside a car.

Credit : Veritas

Then Count Again

There is a very simple accountability test: after major projects are built and occupied, count the traffic again. Compare what was predicted with what actually happened.

If the forecast was right, great. If it was wrong, say so. If an intersection became more congested than expected, fix it. If a traffic or safety improvement was promised when a project was approved, make sure it actually gets built.

I do not expect the Town Council to prevent every traffic jam. I do expect council members to take responsibility for the projects they approve and for the promises made when those projects are approved.

Consultants prepare reports. Staff makes recommendations. But elected council members cast the votes.

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Elections Matter

That matters even more this year. Vice Mayor Robert Storer is running for reelection, and Denton Carlson and Pratima Sonavne are also asking voters for a seat on the Council. Fine. Then tell me what you are going to do about this.

I want the same answers from all of them. Will you require a cumulative look at traffic and safety instead of examining growth mostly project by project? Will you count again after projects are occupied? Will you make sure promised safety improvements actually happen?

Those seem like pretty reasonable questions for people asking for our votes.

This is not about being for housing or against housing. California has housing requirements, and Danville will change. The question is whether we are planning honestly for that change — the homes, the people, the cars, the intersections and the effect on the small-town character the Council has repeatedly promised to protect.

When Danville becomes a town of nearly 50,000 people, it will not happen overnight. It will happen one project and one Council vote at a time.

The traffic study eventually goes into a file drawer. The campaign flyer goes into my recycling bin.

Tomorrow morning, I still have to get my kids to school.