AB 413 (2023, Lee), the Daylighting Saves Lives bill, became law last year. It prohibits stopping, standing or parking a vehicle within 20 feet of any crosswalk, whether marked or unmarked. CalBike: Intersection Daylighting Becomes California Law. The law also details that it applies to the approach side (upstream), and is 15 feet if a curb extension is present. Until January 2025, only warnings can be issued. Either red paint or a sign is required. It does allow a ‘local authority’ (city or county) to establish a different distance with justification and by painting or signing a different distance. Another exception is for commercial vehicle loading and unloading, where the specific crosswalks are identified in ordinance and they are marked by paint or signing. Bicycle and scooter parking can be placed within the 20 feet, which is great since much of the city lacks sufficient parking for these devices.

I fully support this law, though I would have modified it in some ways. I don’t think the 15 foot distance where a curb extension is present is necessary. The daylighting here can be ‘enforced’ by design. I would have made an exception for passenger loading and unloading (white curb), not for commercial vehicle loading and unloading (yellow curb). Commercial vehicles usually don’t stay long, but they are almost always large and effectively block visibility, whereas private vehicles are usually smaller and block visibility to a lesser degree. Of course we need commercial loading and unloading zones, many more than exist, so that bike lanes and travel lanes are not blocked, but approaching crosswalks is not the right place. Most drivers don’t understand what curb colors mean anyway, but that is a matter for education, not for not using them. Green, by the way, signifies limited time parking, which is posted on signs or stenciled on green curbs.

So, how will the City of Sacramento respond to this? The city has over 700 signalized intersections. It is unknown how many total intersections there are, but it is likely in excess of 15,000, and for most intersections there are four crosswalks, so in excess of 60,000 crosswalk approaches. There isn’t and likely won’t ever be funds to mark or sign all these. So how should the city select locations? One criteria that should not be used is how much demand there is for parking on a particular street. This is about safety, not parking. So possible criteria, similar to that presented for ‘no turn on red’ (no turn on red for Sacramento?):

• locations of crashes: This is a no-brainer. Red curbs or signs should be installed at any intersection where there is a history of crashes involved walkers and bicyclists. This should be city policy, to install signs at any location where SWITRS indicates there is an issue, or immediately after any crash.
• crosswalks with a high walker count: This is probably the most beneficial for safety. The problem is that the city does not collect data on the number of walkers using crosswalks (marked or unmarked), so it would not know where to start. The lack of data collection is a failure on the part of the city, but it is nevertheless a fact.

There are other possible criteria. The city’s Vision Zero Action Plan (2018) identified ‘Parking Restrictions Near Intersections’ as a countermeasure specifically for drivers making left or right turns impacting walkers and bicyclists, with a high efficacy, low cost and low complexity. The Top Five Corridor Study identified Marysville, El Camino, Broadway/Stockton, South Stockton and Florin segments as dangerous roadways for safety improvements. Unfortunately the Vision Zero effort was limited to corridors, and not high injury intersections. It should have also identified the top five, or ten, intersections. Nevertheless, the city does have data on these intersections that could be used to identify high priority fixes.

The separated bikeways with turn wedges on P Street, Q Street, 9th Street, 10th Street, 19th Street, 21st Street, and I Street largely address the issue without needing additional marking or signing, on the side on which the bikeway is installed, but the other side would still need marking or signing. The separated bikeway on J Street has daylighting at some but not all crosswalks.

The highest safety benefit accrues to curb extensions, temporary at first and permanent in the long run. Temporary extensions are inexpensive and can be installed quickly (Strong SacTown quick-build street safety), while permanent extensions are more expensive and require planning. Sometimes curb extensions require relocation of drain inlets, which increases their cost.