Lake Traffic Solutions is a provider of pedestrian and vehicle safety products and solutions for streets and roadway maintenance.

Traffic Calming

A car in a residential neighborhood slows for a speed hump.

Lake Traffic Solutions is a leading supplier of innovative traffic calming products including rubber Road Kop speed cushions and speed tables; speed breakers (speed bumps); and Flexible Kurbing for bulb outs, chokers, islands and traffic circles. These devices reduce traffic speed and control traffic volume to improve the safety of local streets.

We pioneered traffic calming with the first speed cushions on the west coast in 2000. Lake Traffic Solutions offers durable, cost effective products made in the USA from US-sourced, post-consumer recycled rubber. We also provide recycled plastic wheel stops and speed bumps in addition to our rubber traffic calming products.

At Lake Traffic Solutions we emphasize customer support, including pre-installation site visits and installation assistance for our traffic calming products. We also supply complete pavement markings and signage for your traffic calming needs.

Road Kop Speed CushionsThis product is made from recycled products

  • Slows traffic 8-12 MPH in 85th percentile speeds
  • Reduces cut-through traffic 18-20%
  • Fire department and bus friendly
  • Endorsed by leading fire departments

Additional benefits:

  • Permanent, yet can be relocated for pavement maintenance
  • Highly visible, reflective chevrons molded in – no painting
  • Extremely durable
  • Fast & easy installation - hardware included
  • 2-year manufacturer’s warranty against defects in material and workmanship
  • Recycled “natural” rubber – from truck and tractor tires
  • Proudly made in USA


  • Standard Road Kop is 6’6” W x 6’8”L x 3” H
  • Long Road Kop is 6’6” W x10’L x 3” H
  • Modular and variable in length and / or width
  • Lengths : 6’8”, 10’, 13’4”, etc. (40” multiples)
    Width by 16” increments
  • Can be installed as a raised crosswalk or a speed table

Road Kop Speed Cushion Drawings and Specifications (PDF, 99kb)
Road Kop Tools and Installation (PDF, 190kb)

Road Kop speed cushion installation with five cushions.

Road Kop speed cushion installation on a residential street.

Rubber Speed BreakersThis product is made from recycled products

3 Sizes & Target Speeds
RK36: Speeds < 20 MPH 36” L x 24” W x 2.5” H
RK18: Speeds < 15 MPH 18” L x 24” W x 2.25” H
RK10: Speeds < 10 MPH 10” L x 24” W x 2.125” H

  • Slow vehicles without the usual severe jolt
  • Highly visible reflective markings molded in – never need painting
  • Modular design allows any length speed breaker
  • Metal dowels connect modules, ensuring alignment
  • Fast and easy installation with hardware included
  • Attractive alternative to asphalt
  • 2-year manufacturer’s warranty
  • Designed for drives, alleys, shopping centers, parking lots and garages, hospitals, military bases, schools, airports, apartments, etc.

Speed Breakers Drawings and Specifications (PDF, 220kb)
Speed Breakers - Required Tools and Installation Instructions (PDF, 89kb)

Road Kare speed breakers used at an intersection.

Flexible Rubber CurbingThis product is made from recycled products

  • For bulb outs, islands and traffic circles
  • Can be temporary or permanent
  • Reflective pavement tape – molded in
  • Dimensions: 36” L x 6” W x 5” H
  • Metal dowels keep modules aligned
  • Installation hardware provided
  • Made from recycled rubber in USA
  • Optional 3” x 36” delineator post
  • Post color: white, yellow or orange
  • Choice of reflective bands

Flexible Kurbing Installation Instructions (PDF, 100kb)

Rubber curbing used in a traffic circle.

Plastic Speed BumpsThis product is made from recycled products

  • Sizes: 4’, 6’ or 9’ W x 1 3/4" H x 9 3/4" L
  • Color: yellow
  • Mounting hardware provided -Specify asphalt or concrete
  • Made in USA from 100% recycled plastic
  • Easy to install
Plastic speed bumps made in the USA from recycled plastic

Wheel StopsThis product is made from recycled products

  • 4’ and 6’ lengths x 3 1/2" x 5 3/4"
  • Colors: yellow, white, blue, gray and black
  • Hardware included for asphalt
  • Solid plastic (not hollow) - 100% recycled
  • Made in USA
Solid plastic wheel stops made in the USA

Rumble Strips

Our rumble strips produce both a visual and either an audible or vibratory warning (or both) to alert drivers they are crossing out of their lane.

Uses include:

  • to avoid drift-off-the-road onto shoulders or crossing over center line on two-way roadways
  • in advance of work zones, crosswalks, railroad tracks, T-junctions and high accident locations
  • in “no vehicle areas”, such as at the end of a “suicide lane" in advance of islands or medians
  • gores, or in advance of roundabouts or traffic circles

Sizes: 8” x 18” (top photo) or in lengths of 3’ or 6’

Rumble strips Rumble strips installed on a highway.



Lake Traffic Solutions
Pedestrian and Vehicle Safety Solutions / Road and Street Maintenance Products
Phone: 925-930-9603 | Contact Us