These guide specifications provide guidance for developing transportation contract specifications and are the national standard for best practices in highway and road construction. This consensus-based guide ..... Read More
This 2020 3rd edition includes the following revisions and updates from the previous 2015 2nd edition: new fracture mechanics-based model for reflective cracking in AC overlays over flexible, ..... Read More
The AASHTO Materials Standards contain specifications, test methods, and provisional standards commonly used in the construction of highway facilities.
The Materials Standards are updated three times ..... Read More
The Council on Highways and Streets (CHS) is delegated the authority to take appropriate action on behalf of AASHTO on matters submitted to it by the U.S. Route Numbering Special Committee, and shall report such actions to the Board of Directors. Members of the special committee are appointed by the AASHTO President and consist of one person from a member department in each AASHTO region. One of these members will be designated by the AASHTO President to serve as Chair. The term of office of all members is four years and reappointment is possible with approval of the President. A non-voting secretary is appointed from AASHTO’s staff.
The U.S. Route Numbering Special Committee shall:
Recommend to CHS actions to take regarding proposed revisions, additions, or deletions on the U.S. Numbered and Interstate Systems
Advise CHS on matters of policy, dealing with the operation of the U.S. Numbered and Interstate Systems; and
Implement the U.S. Bicycle Route Numbering System
If there is anything that you would like to be included on this page, please contact the committee sectetary.
The purpose of the U.S. Bicycle Route System (USBRS) is to facilitate bicycle travel on appropriate roads, paths and highways over routes that are desirable for interstate bicyclists. A route should form continuity of available roads through two or more states connecting and traversing areas of scenic, cultural, and recreational interest.