Demand for the HS2 high-speed rail project has "likely been overestimated", according to a report by a think-tank.
Evidence HS2 will promote economic growth or tackle the north-south divide is "limited", the report - from the New Economics Foundation - claims.
HS2 will reduce the average journey time from central Leeds to London from 2 hours 20 minutes to 1 hour 28 minutes.
The report adds the line will be "carbon intensive and environmentally damaging".
In January 2012 the construction of phase 1 between London and Birmingham was approved. Construction is set to begin in 2017 with an indicated opening date of 2026.
More top news
Niamh McKevitt is the only girl in the country playing football with boys in her age group. Here she reflects on her experiences.
Readers of a popular Yorkshire magazine were asked to vote for their favourite Yorkshire's view. Here are the results.
Sunny spells. Showers forming.