Background

Angeles Crest Highway (ACH) cuts through La Cañada Flintridge as a high-speed, four-lane state highway with no sidewalks, bike lanes, or crosswalks. For decades, residents have endured unsafe conditions and excessive noise. Past efforts to fix these problems stalled, but in 2025, a new window of opportunity has opened. Recently, our City Engineer has proposed common-sense improvements to ACH that will address these problems. With renewed civic engagement and alignment among city staff and elected officials, we finally have the momentum to make real progress.

Current Progress

In April 2025, the City held a Town Hall to hear from the community. The LCF City Engineer presented design options for traffic calming, pedestrian improvements, and lane reductions. In May, the City Council took an important first step and approved $100,000 to begin engineering for one of the City Engineer's proposed changes: a traffic signal at Green Lane. 

What’s Next

We are calling for the City and Caltrans to move forward with the sensible and phased approach proposed by LCF's City Engineer. The proposed changes will make Angeles Crest Highway (ACH) safer and more livable. Here’s what we expect from the City and Caltrans in the coming years:

Step 1: 2025–2026 — Design and Approval of the Green Lane Traffic Signal

• Complete the design (Plans, Specifications & Estimates) for a new traffic signal at Green Lane and ACH using the $100,000 already approved by the City Council.
• Work with Caltrans to ensure the signal meets all technical requirements and safety standards.
• Include measures that slow down traffic approaching the intersection, such as speed studies, advanced signage, or signal timing features.
• Maintain transparent communication with residents and provide regular progress updates.

Step 2: 2026–2027 — Build the Signal and Plan the Corridor

• Fully fund and construct the Green Lane signal to give residents a safe place to cross and calm high-speed traffic.
• Launch a comprehensive corridor design process that includes sidewalks, bike lanes, landscaped medians, and a lane reduction where feasible.
• Involve the community in workshops and surveys to shape the final plan.

Step 3: 2027 and beyond — Build a Safer, More Walkable ACH

• Secure construction funding for the full corridor through local, state, and regional sources.
• Prioritize construction phases based on areas with the most urgent safety needs.
• Deliver a reimagined ACH that works for families, children, seniors, and commuters—not just through traffic.

 

Addressing Concerns from Our Neighbors

Some of our neighbors have raised thoughtful concerns about how a traffic signal or broader ACH changes might affect the character of the neighborhood. These concerns deserve to be heard and addressed.

“Will the signal cause more noise and idling near our homes?”

A well-timed traffic signal can help reduce the kind of aggressive driving that creates noise, like rapid acceleration or sudden braking. For our neighborhood, this means less revving and a smoother, quieter traffic flow.

“Will Green Lane see more cut-through traffic?”

Traffic engineering tools like turn restrictions can discourage unwanted cut-through patterns. A signal does not need to mean more traffic on local streets, and we can work with the City to monitor and adjust as needed.

“Will this lower property values?”

In similar communities, street safety improvements like sidewalks, safer crossings, and landscaped medians tend to increase property values by making neighborhoods more walkable and family-friendly.

“Will a signal alone solve the whole problem?”

No, and that’s why we’re advocating for a corridor-wide solution. The Green Lane signal is a vital first step, but we support a broader plan that includes speed reduction, pedestrian access, and long-term design improvements.

 

Our Ask

Angeles Crest Highway should no longer function as an unregulated speedway through our neighborhoods. It must become a safe, connected, and livable part of our city. We call on the City Council, Caltrans, and regional planners to move forward without delay.

By signing this petition, we urge them to:

✅Fully fund and promptly construct the Green Lane traffic signal. Deliver on the first critical step toward a safer corridor.

✅Launch formal planning for corridor-wide improvements. Begin design and funding efforts for sidewalks, medians, bike lanes, and a potential lane reduction.

✅Maintain open communication with the community. Provide regular updates through a dedicated webpage and ensure opportunities for public input at each stage.

 

What Can You Do?

🖊️ Sign and share this petition to keep building our momentum in support of improvements to ACH!

📢 Attend meetings of the City Council and the Public Works and  Traffic Commission to make your voice heard!

📨 Call and email City Council members to tell them that our neighborhood wants improvements to ACH!