Data on this site is no longer being updated. For the latest in road traffic stats, plus other road data,
please visit our new site at MABCU - Data for road nerds
U, The Comyns, Hertfordshire (Grid ref TQ144943) A4140 between A409 and A411, Hertfordshire (Grid ref TQ150940) A411 between A4140 and A409, Hertfordshire (Grid ref TQ150946) A409 between A4140 and Harrow boundary, Harrow (Grid ref TQ154940) A409 between Hertfordshire boundary and A411, Hertfordshire (Grid ref TQ156945) U, Moatfield Road, Hertfordshire (Grid ref TQ137957) A41 between A411 and B462, Hertfordshire (Grid ref TQ150959) A411 between A4008 and A4140, Hertfordshire (Grid ref TQ130953) U, Harcourt Road, Hertfordshire (Grid ref TQ140960) A411 between A409 and A41(T), Hertfordshire (Grid ref TQ160950) A4140 between A410 and Harrow boundary, Harrow (Grid ref TQ160934) M1 between LA boundary and J5, Hertfordshire (Grid ref TQ147961) U, Homefield Road, Hertfordshire (Grid ref TQ132960) A41 between A5183 / A5 and A411, Hertfordshire (Grid ref TQ164950) U, Little Bushy Lane, Hertfordshire (Grid ref TQ142964) U, Grange Road, Hertfordshire (Grid ref TQ126958) A409 between A410 and A4140, Harrow (Grid ref TQ149920) A4008 between Hertfordshire boundary and A4008 split, Hertfordshire (Grid ref TQ120948) A4008 between A410 and Harrow boundary, Harrow (Grid ref TQ136920) M1 between Harrow boundary and Harrow boundary, Harrow (Grid ref TQ169946)