Glossary of Acronyms and Terms

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Definitions: From M to O

 

Median – The portion of a divided roadway separating the traveled ways for traffic in opposite directions.

Merging – The converging of separate streams of traffic to a single stream. 

Mitigation  - sequentially avoiding impacts, minimizing impacts, and compensating for any unavoidable impacts (WSDOT, 2005).

Mitigation Plan – document(s) that contain all information and specifications necessary to fully implement and construct a compensatory mitigation project (WSDOT, 2005)

Nominal safety - refers to a design alternative’s adherence to design criteria and standards. 

Operating Speed – Actual speed at which traffic flows.