Oxfordshire County Council and Oxford City Council have released the definitive twelve-month monitoring report evaluating the experimental Low Traffic Neighbourhood (LTN) filters across the historic Jericho and Walton Manor districts, providing verified empirical data on traffic volumes, air quality, active travel rates, and emergency response times. The comprehensive 78-page technical dossier, presented to the County Transport Decisions Committee, demonstrates a 46% reduction in motor vehicle through-traffic across residential streets within the zone.
The Jericho traffic filter scheme, centered on bollards and automated number plate recognition (ANPR) cameras positioned at Walton Street, Little Clarendon Street, and Great Clarendon Street, was introduced to eliminate dangerous rat-running through narrow residential lanes while promoting walking and cycling between central Oxford, North Oxford, and the Radcliffe Observatory Quarter.
According to air quality sensors installed along Walton Street and surrounding residential arteries, nitrogen dioxide (NO2) concentrations decreased by an average of 21.4% year-on-year, bringing local air quality consistently within World Health Organization target guidelines. Furthermore, daily cycle counts recorded by automated monitoring stations along Walton Street rose to an average of 4,200 journeys per day, making it one of the most heavily utilized active travel corridors in the county.
Councillor Andrew Gant, Cabinet Member for Highway Management, outlined the policy implications of the data during a public committee review at County Hall. “The empirical evidence gathered over the past twelve months demonstrates clear, measurable gains for public safety, cleaner air, and active travel across Jericho,” Cllr Gant stated. “Residents are enjoying quieter, safer residential streets, and our children can walk and cycle to local primary schools with far greater confidence.”
The monitoring report also addressed concerns regarding surrounding boundary roads, such as Woodstock Road and St Giles. While early months showed localized traffic increases during peak morning rush hours, highway adjustments, optimized traffic signal phasing, and expanded Park and Ride services have stabilized boundary traffic flows within historical variations.
Local traders on Walton Street and Little Clarendon Street shared mixed reflections, noting that while daytime al-fresco dining footfall increased significantly during spring and summer, winter delivery logistics required ongoing attention. The council has confirmed that ANPR access exemptions for registered local delivery couriers, emergency care workers, and blue badge holders will remain permanently active.
A final public consultation regarding the permanent retention and aesthetic enhancement of physical planters and seating at the Walton Street filter will open on the council’s Let’s Talk Oxfordshire digital portal next week.


