Traffic Management System Solutions
Advanced Traffic Management System  software delivers the reliability and real-time data needed to effectively manage highway, bridge, and tunnel operations.
System ensures optimal usage and safe passage on critical roadways, both under normal conditions and during periods when planned events or unexpected adverse conditions such as inclement weather, lane closures, vehicular incidents and heavy volume can impact the normal flow of traffic.
The intelligent traffic management system consists of a master unit and a number of slave nodes sparsely located at different geographical sites and interconnected together through the internet.
Each node is equipped with an embedded web server which is responsible for monitoring and controlling the traffic signals, traffic sensors, camera and/or the  variable message sign (VMS) located at a specific intersection .
The master unit is the Central Traffic Management Unit  used to remotely monitor and control the different nodes using the internet as the communication backbone.

Features:

• Vehicle detection and traffic monitoring
• Automatic incident detection
• Integrated intelligent video management
• Real-time decision support
• Stopped vehicle detection
• Motorist advisory information through VMS, HAT, telephone, and the Internet
• Integrated real-time travel time advisories
• Integrated dispatch communications
• Ramp metering
• Automatic emergency and maintenance vehicle location, reporting and dispatch
• Integrated roadway weather information
• Dynamic gate control, barrier, and reversible roadways
• Supervisory control of traffic signalization systems
• Closed loop control of ventilation systems
• Integrated bridge and tunnel facility lighting, standpipe and electrical controls
• Interface to site access, security and fire protection systems

Tunnel Control Systems
Tunnel systems are used for safety of traffic and travellers during ordinary operation and also during unexpected events and emergency situations at the tunnel roads. Tunnel Control Systems solution includes:

* Control system,
* Tunnel information system,
* Measuring of physical values for a maximum situation survey in the tunnel by the control centre,
* Traffic data measuring system,
* Radio communication in a tunnel,
* Power back up systems in tunnels
* Tunnel SOS safety,
* Equipment of pre-gantry sections,
* Additional systems according to a specific implementation.

Tunnel systems are suitable for small tunnels with a short tube and  also for long highway tunnels several kilometres long.

 

Basic Technical Description
Control system provides a complete check of all processes of the tunnel entire technological equipment and forms a functional, well organised and ergonomic man-system interface. It includes well arranged diagnostics and measured data archiving system. Central dispatcher
post is equipped by visualisation system and overview video large screen. For direct
communication of tunnel dispatchers with drivers in the real time a tunnel information system is used. It includes a set of various traffic signs, vehicle signals and light traffic signs coupled with the control centre.
Weight control of trucks is based on principal of scanning of separate half-axis weight by piezo-electrical sensors and video image analyses recorded by cameras. The result is used to select vehicles suspected of exceeding permitted limits in the traffic flow.
Video-detection system is also applied for recognition of orange tables of vehicles hauling a dangerous cargo. Video image data are converted to the text form, based on which the type of danger and character of transported substance can be identified. In case of accident this information can significantly help to control centre employees  and rescue units to re-arrange their decision making.
To ensure maximum safety and timely reactions to impending danger the key physical values testifying of current situation in tunnel are continuously monitored. For instance concentration of carbon monoxide (CO), speed and direction of air circulation, opacity, air temperature at tunnel gantries and also in tunnel internal space, fog occurrence in gantry vicinity, pressure difference at ventilators and other relevant factors are monitored.

For measuring of traffic data a system evaluating traffic by induction loops built-in a roadway is used. Tunnel radio communication is provided by signal transmission from outdoor antennas and its transmission is ensured via diplex and amplifying circuit system allowing simultaneous operation of all networks without mutual interference and difference in a communication quality.
During ordinary operation the power supply of the tunnel technological equipment is provided from public distribution network. In case of power supply drop out a second back-up source from distribution network and additional power supply source (usually a diesel-aggregate) are
available continuously. Power supply system must cover required outputs and also short-time consumption increase.
SOS cabinets are used for public and operators to call for help in case of emergency. Cabinets with special fire resistant construction include communication equipment for connection with the dispatcher centre, basic first aid, fire and rescue outfitting and other necessary technological equipment.
Installation of the tunnel systems includes also realization of the equipment at pre-gantry road

sections. It especially includes variable traffic signs and informative boards, system of dynamic detection of vehicle height before its entry into the tunnel and its timely diverting in case the set height limits are exceeded and other technologies according to the specific project.

Highway Information Systems
Intelligent Transportation Systems make use of different technologies such as information and communication mechanisms as well as collection, storing, processing and distribution of a large amount of data. All these technologies have a common goal which consists in efficient operation of motorway network, greater road safety and lower environmental pollution as well as time saving and ensuring greater value for money and greater mobility.
The Highway Information System (HIS) database contains information which is collected and maintained by various Divisions within the Transportation Cabinet. The integrity of the HIS data is dependent upon both the accuracy and frequency with which the data is updated and the users interpretation. This also includes the visual display and analysis of the HIS data using Geographic Information Systems (GIS).
Therefore, no warranty, expressed or implied, is given to the accuracy, completeness, reliability, or suitability for any particular purpose of the information or data contained in HIS.
The system consists of  roadside controllers,  traffic sensors, portable changeable message signs, and  portable signs with flashing beacons. The system also incorporated three existing mobile highway advisory radios and portable signs with flashing beacon systems.
The roadside controllers retrieve data from the traffic sensors, calculate the travel time delay and update the variable message signs, highway advisory radios and flashing beacons to reflect the current conditions.
A public web site was also set-up to host current traffic data as well as any messages that the variable message signs were displaying. The web site provides valuable information for motorists who pre-plan their trip.
Complex processes such as planning new road proposals involve many stakeholders and multiple sources of information. system's data includes:

• Traffic station locations, which help determine traffic flow volumes
• Highway Performance Monitoring System (HPMS) data, a federally mandated system
• Highway inventory assets and attributes, such as guardrails, call boxes, and pavement types

The structures management system is elaborated in the light of the long-term planning of maintenance of civil engineering structures on motorways. Repairs and maintenance activities are thus conceived so that with minimum investment a structure reaches a sufficient level of  usability and safety over the foreseen service life. The management system is divided into the following projects i.e. engineering structure categories:

• Pavement (all traffic areas);
• Bridges (viaducts, culverts, overpasses and underpasses) and tunnels;
• Drainage systems;
• Road furniture (freestanding windbreaks, noise barriers).

The system includes below data files:

 

Crash files contain basic accident, vehicle, and occupant information on a case-by-case basis.
Typically, this information includes type of accident, types of vehicle, sex and age of occupants, fixed object struck, accident severity, and weather conditions.

Roadway Inventory files contain information about roadway cross sections, types of roadway and other roadway characteristics. Data include number of lanes, lane and median width, shoulder width and type, rural or urban designation, and functional classifications.

Traffic Volume files list Annual Average Daily Traffic (AADT) data. Additional information on hourly volumes and truck traffic percentages is also available in selected States and/or locations.
Curve/Grade files contain horizontal curve and vertical grade information. Data include degree of curve, length of curve, and percent grade.

Intersection files include traffic control type, intersection type, signal phasing, and turn lanes
at highway intersections.

Highway Payment  Systems
Providing expertise and technology know how in design, development and manufacture the state of the art solution of the SCC Pay toll System which enables full automatic categorization together with simple and reliable operation combined with the highest security of data exchange with encrypted data transfer.
The Highway  was felt that the systems architecture elements in themselves were not sufficient to address national payment systems as a whole. Therefore, the concept of a ‘Payment Highway’ was developed.
To design, develop and/or deliver pay toll system: “closed” pay toll system with automatic categorization (users are registered at the motorway entrance, and payment is performed at the motorway exit.), and “open” pay toll system (toll payment is made at one cross section of the motorway, for the section traveled and/or for the section to be covered).
KGS Management System is a Rf Card  product for issuing cash and credit contactless mifare chip cards, which are used in the gateways on the bridges and express highways. The system also manages gateway information and prepaid card loading process.
KGS Management System automatically performs the steps of processing files coming from Public Highways and creating responds.
KGS Management System ensures monitoring in detail of all transactions of the card with easy-to-use screens, and advanced reports.
KGS Management System is a product, which operates integrally with  Card Management Systems. It decreases the operation time with this feature.
KGS Management System allows card selling, balance loading, balance displaying, information updating at the branches with the mifare readers.

 

Basic Features 

• Support for several institutions
• Management of prepaid and credited KGS cards
• Online file exchange and file processing with General Directorate of Highways
• Online processing of prepaid cash deposit coming from hand terminals
• Control of all required security codes
• Reporting module providing detailed information
• Advanced logging module
• Transferring KGS credit card transactions automatically to the card statement
• Easy integration to version changes made by General Directorate of Highways, and supporting several versions simultaneously.
• Pay toll transactions using magnetic tickets and/or RF tags (electronic toll collection) Full-speed (no-stop) tolling transactions through prepaid and postpaid customer accounts.
• A variety of payment methods: cash, credit and debit cards, electronic tags
• Possibility of combined manual toll collection (using magnetic tickets) and electronic no-stop collection in the same lane
• Automatic vehicle classification based on contact less axel counts
• Video system supporting automatic license plate recognition
• Video enforcement
• Displays of various traffic information (snow, ice, wind, accident etc.) on toll indicators
• Ease of operation  and simple staff training
• High system modularity and serviceability
• Ergonomically designed, ultraviolet radiation protected toll operator booths with overpressure
• PC technology
• QNX, LINUX or WINDOWS operating systems
• WAN and LAN environment
• High data security provided by encryption techniques
• WEB accessible database
• Toll payment using WEB services or mobile telephony

Magnetic Sensors
The earliest magnetic field detectors allowed navigation over trackless oceans by sensing the earth’s magnetic poles. Magnetic field sensing has vastly expanded as industry has adapted a variety of magnetic sensors to detect the presence, strength, or direction of magnetic fields not only from the earth, but also from permanent magnets, magnetized soft magnets, vehicle disturbances, brain wave activity, and fields generated from electric currents. Magnetic sensors can measure these properties without physical contact and have become the eyes of many industrial and navigation control systems. This paper will describe the current state of magnetic sensing within the earth’s field range and how these sensors are applied. Several applications will be presented for magnetic sensing in systems with emphasis on vehicle detection and navigation based on magnetic fields.
Magnetic sensors have been in use for well over 2,000 years. Early applications were for direction finding, or navigation. Today, magnetic sensors are still a primary means of navigation but many more uses have evolved. The technology for sensing magnetic fields has also evolved driven by the need for improved sensitivity, smaller size, and compatibility with electronic systems. An integrated circuit based magnetic sensor, optimized for use within the earth’s magnetic field, will be presented—anisotropic magnetoresistive (AMR) sensors. Applications using AMR magnetic sensors are emphasized.

A unique aspect of using magnetic sensors is that measuring magnetic fields is usually not the primary intent. A secondary parameter is usually desired such as wheel speed, presence of a magnetic ink, vehicle detection, or heading determination. These parameters cannot be measured directly, but can be extracted from changes, or disturbances, in magnetic fields. Conventional sensors, such as temperature, pressure, strain, or light sensors can directly convert the desired parameter into a proportional voltage or current output.