They include: quality assurance requirements for construction contracts; a new specification for piling and embedded retaining walls - which is likely to be adopted as a standard by the UK construction industry as a whole; and specifications for driver information signs at roadworks.
There is also an update on the use of recycled products in road construction and re-surfacing.
The highways agency's chief highway engineer, Terry Rochester, said:
'The highways agency is proud of its engineering and maintenance standards, and is committed to obtaining quality and value for money from its many contractors.
'We will continue to develop our knowledge in partnership with the roads industry and use our experience to ensure that we deliver a safe, reliable, efficient and environmentally acceptable trunk road network for the benefit of all road users.'