Under the proposed changes Hilperton will become part of the Trowbridge constituency....
If you follow this link it will take you to quite an interesting map http://www.bce2018.org.uk/node/6489?postcode=BA147QQ
Quite how the proposed new name came about would be interesting to know. I'm sure that other towns in the constituency won't be over the moon with the suggestion. Would something along the lines of 'North west Wiltshire' not be better?