As developers of the Heavy Vehicle Simulator (HVS), CSIR Built Environment is acknowledged as worldwide leaders in APT. Responsible for research, development and implementation activities related to transportation, they currently provide full scale APT to national and provisional agencies and private companies in South Africa. CSIR is closely linked with many major APT programs providing assistance with APT testing and monitoring
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In partnership with Caltrans, CSIR of South Africa and Dynatest the CAL/APT program was established at the Pavement Research Center of UCB in June 1994. It provides full scale APT capability in the form of 2 HVS Mark III models. Current projects include HVS testing on the fast-setting hydraulic cement concrete sections in Palmdale and HVS testing to investigate the performance of modified binders on a highway specification test road recently constructed at PRC.
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The Accelerated Transportation Loading System (ATLaS) is a mobile APT unit funded by the Illinois Department of Transportation and the State of Illinois. It is utilized in the evaluation of multiple transportation systems (aircraft, truck and rail) at load levels exceeding existing highway and airfield limits. It possesses a bi-directional production rate of 10,000 repetitions per day
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The Accelerated Pavement Load Facility (APLF) is a full-scale APT facility providing testing on highway sections in an environmentally controlled chamber. Projects utilizing the APLF include studies of ultrathin concrete, verification of three-dimensional pavement models, dowel bars, materials, and other aspects of flexible and rigid pavement structures.
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Housed within the new State Materials Research Park
in Gainsville, Florida, the Florida Department of Transportation's Accelerated
Pavement Testing and Research Program consists of eight linear test tracks.
Two additional test tracks are designed with water table control capability
within the supporting base and subgrade layers. A HVS Mark IV model is
used for accelerated loading of the test tracks.
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The Cold Regions Research Laboratory (CRREL) provides
research capability into the performance of pavement structures in cold
climatic regions. CRREL is able to simulate freeze/thaw cycles to a depth
of 3 feet. A HVS Mk iv is employed for load application.
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Utilizing a HVS Aircraft APT (HVS-A "Bigfoot" unit contained within a hangar the WES facility provides for research into the performance of pavement structures under heavy loading conditions. APT testing simulates the loading conditions of aircraft and haulage trucks in an environmentally controlled environment.
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The Indiana Department of Transportation (INDOT) - Accelerated
Pavement Testing Facility (APTF) is located at the INDOT - Division of
Research Facility in West Lafayette, Indiana. A joint venture between
INDOT, Purdue University and Industry the APTF is housed in an environmentally
controlled building. This fixed linear APT facility includes a 20 by 20
feet test pit, a loading mechanism and control & monitoring equipment.
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Established in 1986 and ocated at Turner Fairbank Highway Research Center (TFHRC) this facility contains 24 full scale test sections trafficked by the Accelerated Loading Facility (ALF) designed in Australia. The ALF provides one direction loading of the test sections at loads varying from 44 to 100 kN simulated one half of a single axle configuration.
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The LCPC circular test tracks provides for full scale accelerated testing of pavements It is a large size carrousel type facility with circular test tracks 6 m wide and 120 m long. Tests sections of 30 m in length are constructed in each of the three test tracks available on site. The loading machine can be moved between test tracks to facilitate high production rates and the construction of test tracks.
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This research laboratory provides performance testing
of pavement structures in 6 feet deep test pits in which temperature,
moisture content and compaction can be controlled. APT is performed by
a fixed bi-directional load frame capable of simulating the loading of
a variety of axle configurations.
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Research facility consists of a test track constructed at
Auburn University, Alabama. The test track provides the capability for
comparative and performance testing of various pavement structures under
similar environmental conditions. Loading is provided through actual trucks
trafficking the test track.
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Developed by the Department of Transportation and Development in conjunction with the Federal Highway Administration this the facility provides APT of test pavements. The Accelerated Loading Facility (ALF) is used for the trafficking of test pavement constructed with full-scale construction equipment closely simulating normal highway construction. Currently a comparative study is being undertaken on Louisiana's conventional and alternative base courses.
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The Texas Mobile Load Simulator (TxMLS) is an accelerated
pavement testing (APT) device at the University of Austin, Texas. It utilises
actual truck bogies, axles and suspensions, thus providing accurate reproduction
of actual traffic. The TxMLS is a mobile APT unit that is utilized for
the testing of existing in-service pavement and constructed test sections,
providing a production rate of 6,000 axle loadings per hour
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The WesTrack facility consists of a test track 10.4 meter wide containing two 3.7-meter lanes and pavement shoulders. Each experimental section is 70 meters in length. Loading is performed by four triple-trailer vehicle combinations being operated an average of 15 hours per day over the 2-year period at the test speed of 64 kph (40 mph). To facilitate the aggressive pavement loading requirement, driverless vehicle technology is used to allow for high operational productivity.
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The Road Research Center, a division of the Center of Research and Experimentation of Public Works (CEDEX), was created in 1985. The facility contains a test track used for full scale APT. Loading is providing with actual truck traffic. CEDEX performs full scale testing of pavements, road design and rehabilitation research.
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This joint investment research program by the National
Road Administrations of Sweden and Finland and the Swedish National Road
and Transport Research Institute performs APT with a HVS Mark IV model.
The purpose of the joint research program is the improvement of road management
in Sweden and Finland through improved life cycle prediction and research
into rehabilitation methods.
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TRL APT facility consists of a fixed linear load frame
house within the research facility. It provides rapid testing of pavement
structures under realistic wheel loads and controlled environmental conditions
as well as research of road marking materials, buried installations and
rigid and modular pavement structures.
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Canterbury Accelerated Pavement Testing Indoor Facility
(CAPTIF) is a full-scale testing facility that has the technology and
personnel to test a wide range of pavement and vehicle properties. Loading
is provided to the circular test track by a rotating load frame. Current
projects include the relationship between lab and in-service performs
of flexible pavement and dynamic loading of flexible pavements.
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MnRoad consists of six miles of test pavements located 40 miles northwest of Minneapolis/St Paul. Incorporating over 4 500 sensors, this APT facility provides extensive data collection capabilities. It is primarily utilized for the investigation of the affect of heavy truck traffic in combination with the annual freeze/thaw cycle on pavement materials and design.
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