It collects information essential for traffic infrastructure, including the number of
vehicles passing through, and use it to control traffic signals and provide traffic congestion information,
etc.
Depending on the environment of the installation location and the purposes of the information to be
collected, the most suitable type of vehicle detector can be installed.
It detects vehicles by using the reflection of ultrasonic waves emitted from the ultrasonic transmitter installed directly above the lane.
It is composed of a control unit and a transceiver.
By installing multiple
transceivers, multiple lanes can be detected.
There are two types of detectable area: a standard area
(1.2 m wide) and a narrow area (0.75 m wide).
A transceiver installed directly above the lane detects vehicles larger than kei
cars.
It works without adjustment in places where the road surface reflection waves can be obtained
stably.
It uses a light transceiver installed directly above the lane to communicate bidirectionally with vehicles (on-board devices) using near-infrared light as the medium. It collects passing times, positions and other information as uplink information (information from vehicles), and provide congestion and other traffic information to vehicles as downlink information (information from the infrared beacons). It can also detect the presence of vehicles using near-infrared light reflection.
It is composed of a control unit and a light transceiver.
By installing multiple
light transceivers, multiple lanes can be detected.
In addition to Advanced Mobile Information Systems
(AMIS) and Traffic Signal Prediction Systems (TSPS), the following systems are also supported as
options.
・PTPS：Public Transportation Priority Systems
・MOCS：Mobile Operation Control
Systems
・FAST：Fast Emergency Vehicle Preemption Systems
It can collect vehicle travel trajectory information as uplink information from
on-board devices that support the Traffic Signal Prediction Systems (TSPS). In addition, it can provide
information based on the traffic light color change schedule to on-board devices as downlink
information.
An on-board device (navigation system) can use this information to provide the driver with
information, such as the recommended speed for passing through the intersection ahead on a green light.
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