An Administrative Decision (AD) is a written decision given by the Office of the State Traffic Administration (OSTA) at the request of the property owner or his/her authorized representative regarding the need for formal OSTA action (i.e., certification) concerning major traffic generators/expansions/land use changes.  If traffic impact analysis demonstrates that the added traffic associated with a major traffic generator/expansion/land use change does not trigger the need for mitigation or traffic safety measures on the state highway system, a request for an AD regarding the development proposal must be submitted to the OSTA.  The AD request form/checklist details the required information that must be submitted to the OSTA.  An AD will be rendered precluding formal OSTA certification once the submitted information is fully vetted by the Department confirming no substantial impact to the state highway system. 

See Below for Samples:

Rendered AD – Never previously certified

Overall Plan – Never previously certified

Rendered AD - Existing Certificate

Overall Plan – Existing Certificate

Sample Local Traffic Authority Concurrence Letter

Sample Local Planning and Zoning Confirmation Letter

As of November 16, 2015 the following Engineering Bulletin must be considered in the hydraulic information/analysis submitted regarding major traffic generators.  Engineering Bulletin EB-2015-2 (Precipitation Frequency Estimates) has been issued and posted on the Engineering and Construction Information Resources web page.