[Talk-GB] Trunk roads

[Peter Miller]

Am I right that the Highways Agency is the definitive source of  
whether a road is a trunk road? ie, if it is on this map[1] then it is  
a trunk road and should be green, if it is not on this list then it  
should not be green?

I notice that the A12 north of Ipswich is current shown as a trunk  
road, but is not on their map as one so should possibly be  
'primary' (incidentally it is also a much lower grade road than south  
of Ipswich) .

Google (ie TeleAtlas) shows it as green, as they do various other  
roads (A140,A143) that are not trunk roads according to the HA.


[1] http://www.highways.gov.uk/aboutus/2329.aspx



Regards,


Peter