General Procedures for the NHS Update

Start by examining the reference material going from general to specific. Look over the statewide NHS maps and urbanized area NHS maps to see if there are obvious and apparent coding errors. For the purposes of this review the types of system changes are separated into two categories-"corrections" and "additions/deletions".

Corrections, especially those that are obvious coding errors when compared to State/FHWA Division official records, will not require multi-agency coordination or official memorandum to FHWA Headquarters. Basically, minor changes are those revisions that identify map coding inconsistencies between the official NHS maps and records maintained by the state and previously approved by FHWA. These include corrections to any of the following:

• Connector description
• Connector mileages
• Incorrect route names, numbers, or wrong route shields
• Future NHS that is now open to traffic or partially open to traffic
• NHS route alignment that differs from official records maintained by the state and previously approved by FHWA
• Miscoding of NHS routes
• STRAHNET coding that differs from the official STRAHNET web site maintained by the Department of Defense' s Military Traffic Management Command Center

Additions/deletions will require coordination with the appropriate agency and necessitate formal approval from the FHWA Headquarters office. These include:

• Adding new NHS connectors
• Deleting NHS connectors
• Adding a new route to the NHS
• Realignment of an NHS route
• Adding STRAHNET route that is not currently displayed on the official STRAHNET web site maintained by the Department of Defense' s Military Traffic Management Command Center

Detailed Procedures

1. Update Procedures for NHS Mainline and NHS Intermodal Connectors
2. Update Procedures for the STRAHNET

Contact

Mike Neathery, mike.neathery@fhwa.dot.gov, (202)366-1257