About 550 miles. That is the length of Los Angeles' Priority Safety Corridors, roughly 7.5% of city streets, where LADOT's safety analysis found serious and fatal crashes concentrate. A lot of beautiful houses sit on them. Their listings do not mention it.
They are not required to, and frankly I would not expect them to. But a buyer can learn more about a street in ten minutes of public data than in three showings, and now that the city has added speed cameras to the mix, there is one more map worth checking. Here are the five I would look at before writing an offer on anything near a boulevard.
1. The speed camera list
LADOT publishes its 125 camera locations by council district, with each segment's posted speed limit, and you can search every location by address on LASpeedCam.com. A camera means the segment scored among the highest in its district for speed-related crashes, speeding, and the presence of people on foot. It is a data point, not a verdict, and I explained the scoring in this post. The Westside sites are listed here.
2. The Priority Safety Corridors
LADOT's Vision Zero safety study identifies the corridors where crashes concentrate, and the camera program draws only from them. If the house fronts one, you want to know before you fall in love with the primary suite.
3. UC Berkeley's crash map
TIMS, the Transportation Injury Mapping System from UC Berkeley's SafeTREC, maps reported crashes from the statewide collision database. It is free. You can zoom to a block and see what has happened at the corner, not what the seller's agent remembers. Look at several years rather than one, pay attention to crashes involving people on foot or on bikes, and remember that collision data runs behind real life, so the most recent months may not be there yet.
4. LADOT traffic counts
LADOT posts its traffic counts through NavigateLA, with data going back to the early 1990s at many intersections. Not every corner has a count, and LADOT says plainly that if an intersection is not listed, it does not have the data. Where it exists, volume is the number that matters most for value. Research on busy streets consistently finds a discount for homes on high-traffic roads, which I summarized here.
5. The street's Mobility Plan network
The city's Mobility Plan 2035 sorts streets into networks. A street on the Vehicle Enhanced Network is an arterial meant to move cars to and from the freeway system. A Neighborhood Enhanced Network street is meant to be slow and locally serving. That network tells you what the city intends the street to become, which is often more useful than what it is today. The Mobility Plan dashboard is the easiest way in.
The free sixth step
Go stand on the sidewalk. Morning commute, mid-afternoon, and ten o'clock on a Friday night. Listen from the bedroom side of the house. No dataset replaces the sound of a car downshifting at 1 a.m., and no seller schedules a showing for that hour.
Then ask the seller
California's Seller Property Questionnaire asks about neighborhood noise and nuisance, and it names traffic among the examples. Read those answers closely on any house near a boulevard, and if a camera went up nearby, ask what the seller has noticed since. The seller's side of this conversation is in this post.
What not to over-read
A camera, a high crash count or a busy designation is not automatically a reason to walk away. Plenty of wonderful houses sit on busy streets, and the price usually reflects it. The point is to know what you are paying for. A buyer who understands the street negotiates better than one who discovers it after closing.
One caution for agents. Keep this about the street: speeds, crashes, volume, noise. Describe the road, never the neighborhood or the people in it. That keeps the advice useful and keeps you on the right side of fair housing rules.
And if you are hoping to fix a fast side street with speed humps after you move in, adjust expectations. LADOT's speed hump program stopped taking new requests in 2025, its funding was cut to $715,000 a year, and the department's own estimate to finish the corridors already identified is close to 40 years.
You would never buy a house without an inspection. The street is the one part of the property you cannot renovate, so inspect that too.
This is general buyer education, not legal, appraisal or investment advice. Public datasets have gaps and lags, so verify anything important with the source agency and your agent.
