Transport Scotland appointed consultants Jacobs to undertake Preliminary Engineering Services (PES) for the A9 improvements between Perth and Inverness. The current stage of the PES commission is the equivalent of a Design Manual for Roads and Bridges (DMRB) Stage 1 Assessment.
A DMRB Stage 1 Assessment involves:
- Identification of baseline (existing) conditions and constraints
- Developing indicative corridor options
- Evolving corridor wide strategies for key elements (such as junctions, lay-bys and the likes)
DMRB Stage 1 Report (March 2014) and associated Appendices