To ask the Secretary of State for Transport, pursuant to the Answer of 7 November 2017 to Question 110602, what assessment he has made of the environmental effect of using bi-mode trains on the Midland Mainline on the basis that the line beyond Kettering will not be electrified.
We are committed to improving journeys for passengers on the Midland Main Line, which is why we are delivering biggest upgrade of the route since it was completed in 1870. The upgrade will enable increased passenger capacity and reduced journey times, and will see modern trains introduced across the route, including a fleet of brand new bi-mode intercity trains from 2022. The Government has made this decision to deliver benefits for intercity passengers sooner than would otherwise be possible.
In line with the Department for Transport’s (DfT’s) processes for appraising transport investments, an economic appraisal including the environmental impacts has been carried out, using the DfT’s Transport Analysis Guidance and incorporating DEFRA guidance on transport related environmental impacts. The results of the appraisal show that compared to the do-minimum scenario, which was continued diesel operation with the existing fleet for 10 years and then the introduction of bi-modes in 2030/31, introducing bi-modes straightaway to replace diesels delivers £11m of greenhouse gas emission savings over the 60-year appraisal period, whilst fully electric trains would have delivered £271m of greenhouse gas savings over the same period.