MEMO - Reviewing Vehicle and Pedestrian Traffic Control

SUBMITTED: February 26, 2025

COUNCIL MEETING:

VOTING RECORD:

The primary function of traffic signals at most traffic intersections is to minimize motor vehicle delays, thereby promoting traffic efficiency. In Irvine, most traffic signals turn green simultaneously with vehicle, cyclist, and pedestrian traffic; however, this poses a safety risk to all involved at traffic intersections. It is recommended that revisions to the current traffic procedures be reviewed to promote the highest level of safety while minimizing delays. 

While California Vehicle Code 21950 grants pedestrians the right-of-way on public roadways, it does not exempt them from the potential for accidents or injuries. The National Highway Traffic Safety Administration reports that 16% of pedestrian fatalities happen at intersections nationwide. In Irvine, various roadways within the City, including Portola Parkway and Yale Avenue, are of particular concern as a result of driver speed and distraction. The result is an increase in risk for potential vehicle versus pedestrian traffic collisions.

One significant and cost-effective way to improve pedestrian safety and visibility is the Leading Pedestrian interval (LPI). These allow pedestrians to enter the intersection a few seconds before cars travel in the same parallel direction. By giving pedestrians a head start, ideally of 3 to 7 seconds, they will be visible to motorists turning right and those turning left on an unprotected left turn. Research demonstrates that LPIs can reduce pedestrian-vehicle collisions by as much as 59%. In addition, California Vehicle Code 21456 also allows cyclists to use the pedestrian walk signal as a green light, giving cyclists a head start and reducing their chances of being injured while crossing intersections.

Certain places within the city should be our top priority for the implementation of LPIs before they are implemented city-wide. First, they should be implemented in high collision intersections, as these safety measures will help reduce fatal incidents that have previously occurred. In addition, they should also be implemented in areas of high foot traffic, such as shopping centers or transit hubs. Finally, they should be implemented on intersections along student routes, such as those near schools to help protect schoolchildren who use them.

Highlighting traffic safety remains a top priority for the City of Irvine. Therefore, exploring measures to enhance safety and comfort for pedestrians and cyclists while minimizing delays can significantly reduce safety risks. Ensuring adequate accessibility for pedestrians, including those with disabilities, will promote pedestrian safety and minimize traffic delays. This is critical for schools, parks, residential, and shopping center areas.

Given this information, I respectfully request that the City Manager and City staff provide recommendations to reform the current Irvine traffic procedures and explore areas where LPIs can be implemented to ensure optimal roadway safety while minimizing delays.