ProVAL News

ProVAL 3.61.27 Released

ProVAL 3.61.27 includes numerous fixes. Changes are listed in the Release Notes and also provided below.

Download ProVAL 3.61.27

File Import

  • Fix: Files that started with a blank line could not be opened.
  • Fix: ProVAL 2.x projects could not be opened.


  • Fix: Applying the route for a file with a large number of events could take a long time.
  • Fix: Leaving the editor before applying a route finished would cause a crash.
  • Fix: Reversing did not work well when using mileposts.
  • Fix: Changing the direction when using mileposts did not immediately update charts.
  • Change: Distance offset is now allowed to range from -9,999,999 to 9,999,999 feet (or
    -3,048,000 to 3,048,000 meters). Please note there is a practical limit of 7 digits. Anything more will be lost.
  • New: Added ability to clear routes.

Analysis – Smoothness Assurance

  • Fix: A grinding location with no decimal places showed an error.
  • Fix: Grinding would fail if any locations had a start location after the stop location.
  • Fix: Changing the locations might not update the length.

Analysis – Optimal WIM Locator

  • Fix: A grinding location with no decimal places showed an error.
  • Fix: Grinding would fail if any locations had a start location after the stop location.
  • Fix: Changing the locations might not update the length.


  • Fix: Some Windows Regional Settings would cause a crash at startup.
  • Fix: The map legend font was sometimes blurry.
  • Fix: PPF files with invalid route information would cause a crash. That has been fixed and ProVAL will also attempt to create a valid route.
  • Fix: Possible fix for rare crash when changing options.

US DOT Smoothness Specification Database Updates

The Transtec Group’s ProVAL Support Team has just updated the US DOT Smoothness Specification database (

The following state spec. files are updated during this round of work:


For State DOTs’ smoothness specification writers, please check on the Smoothness Specification website and contact us if there are any further updates!

ProVAL Workshop at SURF 2018, May 4th

The first ProVAL workshop ever in Australia will be conducted on May 4th during the SURF 2018 conference (8th Symposium on Pavement Surface Characteristics, by PIARC) in Brisbane, Australia. DR. George K. Chang, Transtec Group, and Mr. Richard Wix, ARRB, will be the instructors. The detailed agenda can be downloaded from here: ( If you plan to attend SURF 2018, sign up the ProVAL workshop during the registration progress quick to reserve your seats!

ProVAL 3.61.24 Released

ProVAL 3.61.24 includes a new installation and a few fixes. Changes are listed in the Release Notes and also provided below.

Download ProVAL 3.61.24


  • Fix: Possible fix for the installation running a repair when opening a file associated with ProVAL. For example, double-clicking a PVP file.


  • Fix: Various issues with custom properties and how they show in the history.

Analysis – Ride Quality

  • Fix: The threshold for non-RN, fixed-interval charts might move when resizing the software.


  • Fix: Possible fix for rare crash when showing event markers.
  • Fix: Maps were no longer showing.
  • Change: The precision for m/km was changed to 3 decimals.

ProVAL Developer Dr. George Chang Receives ASTM Award

Dr. George K. Chang, The Transtec Group’s Director of Research (also the team lead for ProVAL development and training), is the recipient of the 2017 Billiard-Stubstad Award. ASTM International Committee E17 on Vehicle – Pavement Systems presented the award to Dr. Chang in recognition of his contributions to improving the use of inertial profiler data around the world and his substantial contributions to the roughness standards preparation and maintenance activities for committee E17.

“Through his work in the field of the measurement, processing and analysis of pavement profiles, Dr. Chang had become a well-known expert in the field of pavement smoothness,” said Dr. Zoltan Rado, chairman of the E17 committee. “He had used and dedicated his expertise and knowledge in the technical and practical pavement profile measurement area to bring unique administrative contributions and leadership in the standards development work of ASTM E17. His work within the E17 committee had made it possible for the committee to develop and maintain relevant standards that support the industry and user communities as well as state and national regulatory bodies with pavement roughness measurement and analysis standards.”

Dr. Chang has also previously received the 2007 Kummer Lecture Award and the 2010 Meyer-Horne Outstanding Achievement Award from ASTM.

The Billiard-Stubstad Award was established in 2015 in honor of Gary Billiard and Richard Stubstad. The award is intended to recognize individuals who have made exemplary technical, practical, and/or administrative contributions to the pavement engineering community through their standards development efforts.

ASTM Committee E17 on Vehicle-Pavement Systems was formed in 1960. The Committee has 11 technical subcommittees that have jurisdiction of over 73 standards, published in the Annual Book of ASTM Standards, Volume 4.03. These standards have and continue to play a preeminent role in all aspects important to pavement management technologies, vehicle pavement interactions and intelligent transportation systems.

Dr. Chang is a world expert on pavement smoothness and intelligent compaction. He has extensive experiences in pavement engineering consulting, research, training, and pavement software development. He has been actively involved in many projects that relate to pavement surface characteristics–including friction, smoothness, texture, tire-pavement noise–materials structure design, and intelligent construction technologies. Dr. Chang’s unique expertise is in system/model integration, data collection and analysis, and asset management. He has developed many pavement engineering software applications that have been used as standards around the US and the world. He also co-founded the International Intelligent Construction Technologies Group (IICTG) association in 2016.

For more information on ASTM Committee E17 on Vehicle-Pavement Systems or the Billiard-Stubstad Award, please visit