The government has published The strategic case for HS2. This sets out the government’s reasons for building HS2 - the new north-south high speed rail line between London, Birmingham, Leeds and Manchester. ‘The strategic case for HS2’ explain step-by-step why HS2 is the best option to meet the capacity and connectivity challenges faced by the rail network.
The Department for Transport has also published various reports concerning guidance on conducting transport appraisals. These are relevant to the assessment of HS2 because they refer to values of travel time savings, demand forecasting and sub-national impacts.