International Road Dynamics
Encyclopedia
International Road Dynamics Inc. provides road traffic management systems. These services include automated toll roads, commercial vehicle inspection systems, traffic data collection products, and traffic management software.
IRD provides weigh-in-motion (WIM)
systems that are capable of weighing vehicles while in motion and classifying them by axle spacings and speed. Information recorded includes individual axle weights, group axle weights, and gross vehicle weight (GVW)
. IRD's weigh-in-motion systems are used at highway inspection stations
to sort vehicles, ensuring only overweight vehicles are stopped for inspection. This reduces wait times and improves traffic flow at weigh stations. IRD's WIM systems are also used by fleet managers to ensure vehicles are leaving terminals within the acceptable weight limits for their classification.
, a world-renowned civil engineer in the transportation field, established IRD in the late 1970's. IRD's first product was weigh-in-motion scales.
By the mid-1990's, IRD had become established as a major player in the international Commercial Vehicle Operations (CVO)
market. In 1995 IRD installed the world's first dynamic truck speed warning system for the Colorado Department of Transportation. Developed for the freeway west of the Eisenhower tunnel
, the system incorporated sensors and an automatic scale to weigh and classify trucks. An algorithm was used to estimate the maximum safe speed for the vehicle as it approached the descent into the canyon. The speed was then displayed on a variable message sign accompanied by flashing lights.
IRD South Asia Private Ltd. is a wholly owned subsidiary of IRD that was established in 2000 and specializes in toll collection systems. As of 2011, IRDSA employs 160 people and has a 54-per-cent share of India's toll business. Company offerings include manual systems, smart card
systems, and transponder
systems. These systems include proprietary weigh-in-motion technology designed to help concessionaires
reduce road-damage and revenue losses. IRDSA also manages data-collection services in cooperation with the National Highways Authority of India (NHAI)
.
IRD acquired the Germany-based PAT Traffic in 2003. By 2009, IRD had installed 10,000 IRD-PAT Bending Plate Scale weigh-in-motion systems.
In 2007, IRD acquired a 50% interest in Xuzhou-PAT Control Technologies Limited (XCPT), an Intelligent Transportation Systems company located in Xuzhou, Jiangsu, China. XPCT had distributed IRD's products in China since 2003. IRD's joint venture in China provides toll road systems, traffic monitoring, and maintenance.
IRD provides weigh-in-motion (WIM)
Weigh in motion
Weigh-in-motion or Weighing in Motion devices are designed to capture and record axle weights and gross vehicle weights as vehicles drive over a measurement site...
systems that are capable of weighing vehicles while in motion and classifying them by axle spacings and speed. Information recorded includes individual axle weights, group axle weights, and gross vehicle weight (GVW)
Gross vehicle weight rating
A gross vehicle weight rating is the maximum allowable total weight of a road vehicle or trailer when loaded - i.e., including the weight of the vehicle itself plus passengers, and cargo....
. IRD's weigh-in-motion systems are used at highway inspection stations
Weigh station
A weigh station is a checkpoint along a highway to inspect vehicular weights. Usually, trucks and commercial vehicles are subject to the inspection....
to sort vehicles, ensuring only overweight vehicles are stopped for inspection. This reduces wait times and improves traffic flow at weigh stations. IRD's WIM systems are also used by fleet managers to ensure vehicles are leaving terminals within the acceptable weight limits for their classification.
History
Dr. Art BerganArthur Bergan
Arthur Theodore Bergan is a Canadian Civil Engineer , a professor, and a leader in Canadian transportation safety research. He supervised the construction of numerous highways and was instrumental in the development of Transport Canada's Transportation Centres...
, a world-renowned civil engineer in the transportation field, established IRD in the late 1970's. IRD's first product was weigh-in-motion scales.
By the mid-1990's, IRD had become established as a major player in the international Commercial Vehicle Operations (CVO)
Commercial vehicle operation
Commercial Vehicle Operations is an application of Intelligent Transportation Systems for trucks.A typical system would be purchased by the managers of a trucking company. It would have a satellite navigation system, a small computer and a digital radio in each truck. Every fifteen minutes the...
market. In 1995 IRD installed the world's first dynamic truck speed warning system for the Colorado Department of Transportation. Developed for the freeway west of the Eisenhower tunnel
Eisenhower Tunnel
The Eisenhower Tunnel, officially the Eisenhower–Johnson Memorial Tunnel, is a dual-bore, four-lane vehicular tunnel approximately west of Denver, Colorado, United States. The tunnel carries Interstate 70 under the Continental Divide in the Rocky Mountains. With a maximum elevation of above sea...
, the system incorporated sensors and an automatic scale to weigh and classify trucks. An algorithm was used to estimate the maximum safe speed for the vehicle as it approached the descent into the canyon. The speed was then displayed on a variable message sign accompanied by flashing lights.
IRD South Asia Private Ltd. is a wholly owned subsidiary of IRD that was established in 2000 and specializes in toll collection systems. As of 2011, IRDSA employs 160 people and has a 54-per-cent share of India's toll business. Company offerings include manual systems, smart card
Smart card
A smart card, chip card, or integrated circuit card , is any pocket-sized card with embedded integrated circuits. A smart card or microprocessor cards contain volatile memory and microprocessor components. The card is made of plastic, generally polyvinyl chloride, but sometimes acrylonitrile...
systems, and transponder
Transponder
In telecommunication, the term transponder has the following meanings:...
systems. These systems include proprietary weigh-in-motion technology designed to help concessionaires
Concession (contract)
A concession is a business operated under a contract or license associated with a degree of exclusivity in business within a certain geographical area. For example, sports arenas or public parks may have concession stands. Many department stores contain numerous concessions operated by other...
reduce road-damage and revenue losses. IRDSA also manages data-collection services in cooperation with the National Highways Authority of India (NHAI)
National Highways Authority of India
The National Highways Authority of India is an autonomous agency of the Government of India, responsible for management of a network of over 60,000 km of National Highways in India...
.
IRD acquired the Germany-based PAT Traffic in 2003. By 2009, IRD had installed 10,000 IRD-PAT Bending Plate Scale weigh-in-motion systems.
In 2007, IRD acquired a 50% interest in Xuzhou-PAT Control Technologies Limited (XCPT), an Intelligent Transportation Systems company located in Xuzhou, Jiangsu, China. XPCT had distributed IRD's products in China since 2003. IRD's joint venture in China provides toll road systems, traffic monitoring, and maintenance.