Riverside County Launches I-15 Smart Freeway Pilot Project

New sensors and technology aim to improve traffic flow and reduce collisions on 8-mile stretch of I-15 in Murrieta and Temecula.

Apr. 7, 2026 at 8:35pm

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An abstract, blurred scene of traffic on a highway, with streaks of color and motion representing the chaotic energy and speed of vehicles.Smart sensors and coordinated ramp metering aim to optimize traffic flow and reduce collisions on a busy stretch of I-15 in Riverside County.Murrieta Today

The Riverside County Transportation Commission has launched a $33.5 million I-15 Smart Freeway Pilot Project to collect real-time traffic data and optimize ramp meters along an 8-mile stretch of Interstate 15 between Temecula and Murrieta. The 90-day data collection period will establish a baseline for evaluating the system's performance over the next two years, with the goal of reducing congestion and rear-end collisions without the need for further freeway expansion.

Why it matters

As one of the main arteries connecting San Diego and Riverside counties, the I-15 corridor through Murrieta and Temecula experiences chronic traffic congestion. This pilot project represents a proactive approach to managing traffic flow using advanced sensors and smart technology, which could serve as a model for similar initiatives in other parts of Riverside County and beyond.

The details

The I-15 Smart Freeway Pilot Project is using sensors and 'smart' technology to continuously monitor traffic conditions in real time on the 8-mile stretch of northbound I-15 from the San Diego/Riverside County Line in Temecula to the I-15/I-215 Interchange in Murrieta. The data collected will help analyze the performance of freeway onramp meters at Temecula Parkway, Rancho California Road, and Winchester Road, with the goal of allowing more or fewer vehicles to enter the freeway at any given time to reduce overall congestion.

  • The $33.5 million project was announced by the Riverside County Transportation Commission in February 2026.
  • An initial 90-day data collection period is currently underway to establish a baseline for evaluating the system's performance over the next two years.

The players

Riverside County Transportation Commission

The regional transportation planning agency responsible for overseeing the I-15 Smart Freeway Pilot Project.

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What’s next

The initial 90-day data collection period will be used to establish a baseline for evaluating the system's performance over the next two years. If the pilot project is successful in reducing congestion and collisions, the Riverside County Transportation Commission plans to potentially implement similar smart freeway technology in other parts of the county.

The takeaway

This innovative pilot project represents a proactive approach to managing traffic flow on one of Riverside County's most congested corridors. By leveraging advanced sensors and smart technology, the I-15 Smart Freeway Pilot has the potential to serve as a model for future traffic management initiatives that prioritize efficiency and safety over costly freeway expansions.