London bus drivers resume strikes over heat-related working conditions

More than 1,500 bus drivers in North London and Essex have resumed strike action after rejecting an offer from their employer, Arriva North London, over working conditions in high temperatures. The Unite union members walked out on Tuesday for a four-day strike, following earlier industrial action on 14 and 18 August that caused delays and cancellations on over 40 bus routes.

The dispute centers on the lack of effective air conditioning on most of Arriva North London's fleet. According to Unite, the buses are equipped with air cooling systems that reduce temperatures by only two or three degrees, leaving cabs to exceed 40C during heatwaves. Drivers have reported symptoms including fatigue, heat exhaustion, heatstroke, and dehydration, with some saying they narrowly avoided crashes.

Unite general secretary Sharon Graham said: "London bus drivers do a vital job, but are putting themselves at risk due to these appalling conditions. Arriva can fully afford to make meaningful changes our members can accept."

Unite regional officer Steven Stockwell added: "There is still time for Arriva to stop this disruptive action, but it relies on it coming back to the table with a deal our members believe will solve the serious problems with conditions once and for all."

Strike dates and routes affected

The current strike runs from 4am Tuesday to 4.30am Friday, with further walkouts planned for eight occasions in September and October. The full list of remaining strike dates includes August 25-28; September 4-5, 7-8, 18-19, 21-22; and October 2-3, 5-6, 16-17, 19-20. Drivers at garages in Barking, Edmonton, Enfield, Grays, Palmers Green, Stamford Hill, Tottenham, and Wood Green are taking part.

Reports differ on the exact number of routes affected. My London and The Sun list 42 routes, while the Evening Standard reports 43. The routes facing little to no service, as listed by My London, include 19, 29, 34, 41, 66, 67, 76, 102, 121, 141, 149, 150, 158, 175, 191, 192, 217, 221, 243, 248, 254, 259, 279, 307, 313, 329, 341, 349, 370, 375, 377, 616, 675, SL1, SL2, W3, W4, W6, N19, N29, N41, and N279.

Many of the August and September strike dates coincide with closures on the Piccadilly Line while new trains are being tested, which is expected to increase disruption for commuters.

Employer response and wider concerns

Arriva London expressed disappointment over the resumption of strikes. A spokesperson said: "We are disappointed that this strike is going ahead when five out of eight of our north London garages have said they don’t want [a strike]. We have already reached agreement with Unite officials on every demand – and we continue to seek feedback from Unite to understand what concerns remain at the three garages that voted to strike."

The Guardian reported that concerns remain that proposed air-conditioning improvements may not be finished by next summer, and that temperatures during this year's record run of five heatwaves often exceeded 40C.

Thomas Turrell, the Conservative transport spokesperson in City Hall, called on Transport for London (TfL) to bear the "massive cost" of making cabs fit for purpose. He said drivers face long hours in scorching conditions, sometimes working 13 consecutive days and lacking adequate toilet facilities. "Realistically speaking, we're looking at a massive cost to make these cabs fit for purpose," Turrell said. "It's really important that we find the money so that drivers are treated humanely."

In June, the Mayor of London gave TfL permission to instruct operators not to penalise drivers who refuse to start a shift if their cabin is too hot. However, some drivers say their bosses have not followed this instruction.

TfL said it is working with bus operators and Unite, including convening a heat taskforce, to improve conditions and assess retrofitting older buses with air conditioning. The taskforce aims to protect drivers and keep the network running safely during extreme heat.

Unite warns that long shifts in heat can slow drivers' responses, diminish concentration, and cause dizziness, increasing the chance of fainting at the wheel. The union says the consequences of underinvestment could be devastating for safety.