The Palisades Neighborhood Association (PNA) recently did an analysis of traffic data collected by the City of Lake Oswego on Greentree Road. The traffic data and PNA’s analysis reinforces a simple message: our neighborhood streets are more than roadways—they are places where children walk to school, neighbors exercise, families ride bikes, and residents back out of driveways every day. Link to full analysis below.

What the Traffic Study Found
To better understand traffic patterns, the City of Lake Oswego speed study was conducted on Greentree Road between Lowenberg Terrace and Carter Place.
The Biggest Safety Concerns
The data consistently identified four issues affecting neighborhood safety:
- Speeding on residential streets, particularly during morning and afternoon commute times.
- Rolling stops at intersections where pedestrians frequently cross.
- Blocked sightlines caused by parked vehicles, landscaping, and corner obstructions.
- Distracted driving, especially drivers using cell phones.
Westbound traffic:
- Approximately 743 vehicles per day traveled this section.
- The average speed was 28 mph.
- The 85th percentile speed was 34 mph, meaning 85% of drivers traveled at or below that speed.
- Most vehicles (over 70%) traveled between 26 and 35 mph.
Eastbound traffic:
- Approximately 724 vehicles per day used the roadway.
- Only 4.6% of drivers traveled at or below the posted 20 mph speed limit.
- More than 95% exceeded the speed limit.
- The average speed was also 28 mph, with an 85% of drivers’ speed was an average of 33 mph.
The PNA’s anaylsis notes that while traffic volumes are relatively modest, the overwhelming majority of drivers are traveling faster than the posted neighborhood speed limit.
What Palisades Neighbors Can Do
The report encourages everyone to take simple steps that can make an immediate difference.
As drivers:
- Slow down and drive 20 mph or less on neighborhood streets.
- Come to a complete stop at stop signs.
- Put phones away while driving.
- Use extra caution near parks and school crossings.
As neighbors:
- Trim hedges or landscaping that block visibility.
- Report recurring speeding concerns to the City.
- Walk school routes with children until they become familiar with them.
- Support traffic-calming measures where appropriate.
The analysis concludes with an important reminder: creating safer streets is a shared responsibility. Whether you’re driving, walking, biking, or simply enjoying your front yard, small actions by each of us can help make the Palisades neighborhood a safer place for everyone.


Westbound traffic near Greentree Park May 12-13, 2026 where the speed limit is 20 mph.