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A121 Traffic

Waltham Cross to Woodford Green (London)


There are no current incidents or roadworks on the a121. Drag the map to show traffic incidents in the surrounding area.


Traffic incidents

The following traffic incidents and congestion for a121 have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:

There are no current incidents in this location.

a121 Roadworks

The following roadworks have been reported by various highways agencies and official transport sources. Click on a roadworks item to view more details on the traffic map.


The A121 is a major road in the United Kingdom stretching from London to the Essex coast. It is a 69-mile route that follows the former medieval road known as the Great Cambridge Road. The route first began being improved in the 18th century and was expanded and made more direct in the 1920s, when it became more suitable for motorised traffic.

The busiest times for traffic on the A121 happen during rush hour in the mornings and evenings from Monday to Friday. During peak times, traffic can be slow-moving due to large amounts of commuters. On weekends, the traffic flow is significantly lighter.

The A121 is a generally safe road with overall accident rates slightly higher than the national average. The majority of the accidents have resulted in minor injuries and damage, however, with only 11% of collisions on the A121 resulting in serious injuries or fatalities.

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Please remember that it is against the law to use your mobile phone, tablet or any electronic device without a hands-free kit whilst driving. If you're caught by the police using any device that can send or receive data whilst driving or riding a motorcyle you'll get an automatic fixed penalty notice, 6 points on your licence and a fine of £200. A court could also disqualify you from driving.

Elsewhere on the web:

National Highways TrafficNational Highways England

Official source of traffic updates.

Transport for LondonTransport for London (TFL)

Transport for London's (TfL) portal for transportation in London.

Traffic WalesTraffic Wales

The Welsh government's traffic information service for Wales.

Traffic ScotlandTraffic Scotland

Live traffic conditions and news for Scotland's road network.

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