Park Parade, S-bound

Route 321 – Delays Expected

21st - 27th Oct 2026

Due to emergency gas works being carried out at Park Mount, Harpenden, temporary traffic lights are in operation and are causing delays in the area.

As a result, Route 321 is currently subject to delays, particularly during peak times. Customers are advised to allow extra time for their journey and to check service updates before travelling.

We apologise for any inconvenience caused and thank you for your patience