With the help of telematics and intelligent transportation system, real time traffic services can be provided to the drivers by the use of emerging technologies. The smart roadside system has the ability to utilize several sensors for driver’s assistance and traffic safety warnings.
Telematics have been defined as in-vehicle systems which offer active safety and infotainment services with the help of wireless communication technologies, along with this, it also provides locations and traffic information.
A variety of in-vehicle telematics systems and intelligent transport systems are available in many countries and new systems are also being designed. Smart Roadside is a kind of system which has been envisioned to be deployed at strategic points along commercial vehicle in order to improve the safety, mobility and efficiency of truck movements and operations on the roadway.
The intelligent transportation system strategy is mainly focused on reducing travel time, easing delays and congestion, improving safety as well as decreasing pollutant emissions without the need for construction of new roadway.
It benefits to transportation system users and managers by various technologies such as: electronic surveillance, communication and traffic analysis and control technologies.
The sensors of this intelligent transportation system generally act as data accumulating elements for the system and that’s why the operating characteristics, types of data provided and installation requirements are dictated by this system.
The two most popular categories of sensors which have been using currently in the smart roadside are: infrastructure based sensors and on-board diagnostics based vehicle sensors.
In infrastructure based sensors, many types of detectors have been includes such as: pressure detectors, inductive loop detectors, ultrasonic and magnetic detectors, microwave and infrared detectors with image etc. A part of the signal control and traffic operation is utilized by these types in intelligent transportation system.
On the other hand; GPS, automatic vehicle identification by using frequency identification tags and OBD based vehicle sensors are included in this category which are connected to an in-vehicle network. These data points have been supplied by the controller area network bus and formatted by vehicle sensor data as probe data or message.
In order to create a clear understanding of the current driving environment as well as to provide the driver the fleet operators with valuable and real time information regarding the vehicle, they have processed, formatted and transmitted to a smart road server for further processing.
In summary, this technology will be helpful in assisting transportation managers for monitoring as well as managing the performance of the transportation system.