Rengstorff Avenue

Feasibility & Alternatives Study

Exploring how Rengstorff could become safer, greener, and more comfortable for everyday trips.

A feasibility study is an early step in designing a project. Nothing here is a final design. This is the stage for testing ideas, understanding what can fit, exploring trade-offs, and imagining what Rengstorff could become.

Illustrative concept visualization of a tree-lined complete street with a protected bikeway, planted buffers, and people walking and biking.
Concept visualization: an illustrative example of a greener, more comfortable complete street. Not a proposed or existing design for Rengstorff Avenue.
Overview

What could Rengstorff become?

This is a chance to rethink how the street works for the community today — a little like spring cleaning and redesigning a room in your home to better fit how you live now.

Who is it working for today?

Right now, Rengstorff doesn’t work especially well for anyone. People driving deal with congestion, dangerous speeds, and stressful intersections. People walking and bicycling can face a street that feels exposed, hostile, unsafe, uncomfortable, and designed primarily around moving cars through the neighborhood.

Getting around

Ever sat through two or three lights at Central while trains pass?

Congestion and difficult intersections affect people driving, too.

Feeling safe

Would you feel comfortable letting a child bike here?

A street shouldn’t depend on every person making the perfect decision every time. Better design can reduce speeds, improve visibility, and make ordinary mistakes less dangerous.

Being outside

Where do you look for shade on an 80°F afternoon?

Exposed pavement and direct sun can make walking and bicycling dramatically less comfortable. Trees, planting, and shade can change the thermal experience of the street.

Where do we actually choose to spend time?

We naturally spend time where it feels good to be — places with shade, greenery, and people. Rethinking Rengstorff can help create more of these places along the corridor.

Design concepts

What could Rengstorff look like?

The City is considering three draft concepts. All include targeted intersection and crossing improvements; the larger concepts explore different ways to use additional street space.

Alternative B, more space for bicycling: Class IV protected bike lanes from Central to Leghorn, about 60% of on-street parking removed. Alternative C, more space for green infrastructure: trees, landscaping and bioretention, about 48% of on-street parking removed.

These are preliminary concepts — examples of different combinations of design elements, not final designs.

Compare designs

What’s the real choice?

Alternative A is the common safety foundation. Alternatives B and C include those improvements, then reallocate additional right-of-way toward different priorities: safer bicycling infrastructure versus green infrastructure.

Protected bike lanes (A+B)Central → Leghorn · Class IV

*Not continuous — includes gaps in physical protection

Sidewalks

No change

Midblock crossings

4*

Wyandotte · Junction · Waldorf School · Rengstorff Park

Vehicle travel lanes

11’|11’‖11’|11’

Parking removed

~60%

Trees + GSI (A+C)Trees · landscaping · bioretention

Green stormwater infrastructure (bioretention)

Sidewalks

4–6′ existing → consistent 6′

Midblock crossings

3

Wyandotte · Junction · Waldorf School

Vehicle travel lanes

11’|10.5’‖10.5’|11’

Parking removed

~48%

The opportunity

What if more everyday trips felt easy?

Walk to the park. Bike to school. Meet a neighbor. Pick something up nearby.

Not every trip has to require getting into a car.

Making short walking and bicycling trips safer and more comfortable gives people another choice — one that can be less expensive, active, social, and enjoyable.

And redesigning the street isn’t only about transportation. Adding trees and nature can create shade, reduce radiant heat, support stormwater management, and make the street itself a more pleasant place to be.

Real-world precedent

A protected bikeway with planted buffers and mature tree canopy on Smithe Street in Vancouver, British Columbia, with people biking and walking.
Protected bikeway, planting, and mature tree canopy on Smithe Street in Vancouver, British Columbia. Photo: April Webster.

Imagine a Rengstorff with…

Safety

Streets designed for people, not just cars.

Comfort

Easy to walk and bike, all year round.

Shade & heat relief

Cooler, more comfortable places to travel and spend time outside.

Nature

Trees, planting, and green infrastructure that support our environment.

Community

More opportunities to see neighbors, connect, and belong.

Street-side planting with flowering plants along a sidewalk on Union Street in Santa Cruz, California.
Street-side planting on Union Street in Santa Cruz, California. Photo: April Webster.
Everyday stories

What does this mean in everyday life?

Street design shapes everyday life. How Rengstorff Avenue looks and feels affects how we get around, how safe we feel, our health, and whether being outside feels comfortable.

A child wearing a helmet and backpack biking along a sidewalk on California Street in Mountain View, before a since-implemented pilot project.

Would you feel comfortable letting a child bike here?

I have friends who live near Rengstorff who won’t let their children ride along it because they don’t feel it’s safe. A protected bikeway can change whether biking is actually an option for a child — not just whether a bike lane exists on a map.

A person sitting under a red umbrella for shade while waiting at an exposed bus stop on Moffett Boulevard in Mountain View.

When heat makes a route unavailable

The door is unlocked.

But the 10th floor is stairs-only.

Is the building really accessible?

A building isn’t truly accessible just because the front door is unlocked if the only way to the 10th floor is the stairs.

An unshaded sidewalk, bike route, or transit stop can be similar in extreme heat: technically open, but not realistically usable for everyone.

This can especially affect children, older adults, people with disabilities or limited mobility, people with conditions that increase heat vulnerability, and people taking medications that interfere with the body’s ability to regulate heat.

Shade can determine when — and for whom — a walking, biking, or transit trip is realistically available.

More opportunities to see neighbors, connect, and belong

Streets aren’t only transportation infrastructure. When walking, biking, waiting, and spending time outside feel comfortable, everyday trips create more chances to see neighbors and participate in community life.

Design can change these conditions

Other communities are showing what’s possible.

A protected bikeway with planted buffers and mature tree canopy on Smithe Street in Vancouver, British Columbia.

Smithe Street, Vancouver, BC

Protected biking, planting, and mature tree canopy on Smithe Street. Photo credit: April Webster

Street-side planting with flowering plants along a sidewalk on Union Street in Santa Cruz, California.

Union Street, Santa Cruz, CA

Street-side planting and greenery integrated into the neighborhood. Photo credit: April Webster

The decision is not simply whether to choose Alternative A, B, or C. It is which elements should be prioritized, which trade-offs are acceptable, and which ideas should advance into the next phase.

Round 2 community input

The decision point

What should Community and Council decide?

The feasibility study shows that there are different ways to use the available street space. The decision is not simply whether to choose Alternative A, B, or C. It is which elements should be prioritized, which trade-offs are acceptable, and which ideas should advance into the next phase for deeper analysis and more detailed design.

The alternatives are examples, not fixed packages. You can support one element, several, or all of them.

What elements are important to you?

You can choose all of them.

Round Two of Design is the time to tell the City which elements should move forward for deeper analysis and more detailed design.

People biking and a person using a mobility scooter waiting to cross at a busy signalized intersection in Mountain View.

Safer intersections

Safer crossings and fewer conflicts.

A protected bikeway with planted buffers separating people biking from moving traffic on Smithe Street in Vancouver, British Columbia.

Protected bikeways

Continuous physical separation from moving traffic.

Street-side planting and green stormwater infrastructure integrated into a sidewalk in Santa Cruz, California.

Green infrastructure

Trees, planting, shade, cooling, and stormwater management.

All of them

Safer intersections + protected bikeways + green infrastructure.

The whole kit and caboodle.

Tell the City what you want to move forward

Take the survey Email Council Learn more on the City project pageLink needed

Sample email provided — edit it to reflect your own priorities and experience.

Project record

Study overview

Study at a glance

Phase
Feasibility & Alternatives Study
Status
In progress
Identifier
CIP 25-39
Study corridor
El Camino Real Leghorn Street
Length
Approximately 1.7 miles
Caltrans grant
$352,000
City contribution
$71,600
Total study funding
$423,600
Next phase
Preliminary Design