TRANSPORTATION PLANNING
> TRAFFIC ENGINEERING
    > Traffic Signal & System Design
    > Signal Synchronization
    > Intelligent Transportation Systems
    > Worksite Traffic Control Plans
TRANSIT - RAIL
TRANSPORTATION DESIGN
NON-MOTORIZED - PARKING

TRAFFIC CALMING

ROUNDABOUTS
CONSTRUCTION MGMT / OBSERVATION


Traffic Signal & System Design

As California’s roadways expand to move traffic at unprecedented rates, state-of-the-art traffic signal design is a vital part of maintaining traffic flow and safety. KOA specializes in traffic signal design, upgrades, timing and synchronization.


Signal Synchronization

Public agencies utilize tools which aid traffic congestion mitigation and maximize traffic flow. For more than two decades KOA has developed effective plans to coordinate a variety of systems including Quik Net, BiTrans, and Icon systems. We are experienced with Type 170, Econolite, Multisonics, Traconex, electromechanical traffic signal controllers and others, as well as Caltrans timing systems.


Intelligent Trans Systems ITS

KOA Corporation has prepared design plans for a variety of Intelligent Transportation Systems (ITS) including changeable message signs (CMS), close circuit television (CCTV) cameras, vehicle detectors, highway advisory radio (HAR), ramp metering, photo enforcement and satellite communications equipment.


Worksite Traffic Control Plans