• Severe M11 Essex
  • Severe 50 mph M25 Hertfordshire
  • Severe 40 mph A1M Hatfield Tunnel Hertfordshire
  • Medium A4251 High Street Berkhamsted
  • Medium  [C] A505 Payne's Park Hitchin
  • Medium  [C] A505 Old Park Road Hitchin
  • Medium A4147 Maylands Avenue Hemel Hempstead
  • Medium A505 Baldock Road Letchworth
  • Medium B4540 Luton Road Markyate
  • Medium A5 Dunstable
  • Medium A111 Potters Bar
  • Medium A111 Southgate Road Potters Bar
  • Medium Primrose Hill Kings Langley
  • Medium A412 St Albans Road Watford
  • Medium A4125 Eastbury Road Watford
  • Medium A1250 Dunmow Road Bishop's Stortford
  • Slight  [C] B158 Bengeo Street Hertford
  • Slight  [C] Leys Avenue One Way Street Letchworth
  • Slight Letchworth Road Baldock
  • Slight B181 Station Road Stansted Abbots
  • Low Impact Millhouse Lane Bedmond
  • Low Impact  [C] Oughton Head Way Hitchin
  • Low Impact  [C] Jubilee Road Letchworth
  • Low Impact  [C] Brand Street Hitchin
  • Low Impact Station Road Letchworth
  • Low Impact  [C] York Road Stevenage
  • Low Impact  [C] Kneesworth Street Royston
  • Low Impact  [C] Lower King Street Royston
  • Low Impact  [C] Wortham Way Stevenage
  • Low Impact Kneesworth Street Royston
  • Low Impact Eastwick Road Gilston
  • Low Impact Greyhound Lane South Mimms
  • Low Impact  [C] Babbage Road Stevenage
  • Low Impact  [C] College Road Watford
  • Low Impact West Hyde Lane Chalfont St Peter
  • Low Impact  [C] College Road Abbots Langley
  • Low Impact Sleapshyde Lane St Albans