New proposals being considered would see another tunnel being used to link two others, which are already planned, and would prevent scarring the Chilterns, which is designated as an area of outstanding natural beauty.
The government said any changes would be funded by savings made elsewhere on the route.
http://www.bbc.co.uk/news/uk-16017413
http://www.guardian.co.uk/uk/2011/dec/03/hs2-rail-tunnel-chiltern-hills?newsfeed=true
An interactive map is available to allow the route to be searched by post code
http://highspeedrail.dft.gov.uk/in-your-area
HS2 400m train will carry up to 1,100 people and travel at up to 250mph
David Gambles
