London Northwestern Railway has cancelled all trains between St Albans Abbey and Watford Junction during this week's RMT strike.
Staff at LNR are set to walk out from work today (Thursday, August 18) and Saturday, August 20, with disruption expected on trains in Hertfordshire either side of these dates.
A total 14 railway firms will be directly impacted by the strikes, including LNR, as well as Network Rail whose staff are responsible for signalling and track maintenance.
An LNR spokesperson said: "The RMT union members intend to strike on Thursday, August 18 and Saturday, August 20.
"If this action goes ahead, a significantly reduced timetable will be in operation across the network on Thursday, August 18 and Saturday, August 20.
"Services will also be significantly disrupted on Friday, August 19."
London Northwestern Railway's first trains of the day will be later than usual in most cases, with last trains departing some stations from as early as 5.03pm.
The firm will run a limited service on the London Euston - Birmingham New Street route, through Watford Junction, Hemel Hempstead and Milton Keynes.
Trains are also set to run on the Birmingham New Street to Crewe route, via Wolverhampton.
There will be no service on other routes - including the Abbey Line between St Albans Abbey and Watford Junction, and the Marston Vale Line between Bletchley and Bedford.
The RMT trade union is calling for a wage uplift and a commitment by rail firms to job security amid a cost of living crisis.
Mick Lynch, RMT general secretary, said: "The rail industry needs to get serious about providing an offer on pay which helps deal with the cost of living crisis, job security for our members and provides good conditions at work.
"Recent proposals from Network Rail fell well short on pay and on safety around maintenance work.
"The train operating companies have not even made us a pay offer in recent negotiations."
Steve Montgomery, chair of the Rail Delivery Group which represents rail firms, hit back at Mr Lynch's claims.
He said: "The railway is too important to this country to allow it to decline, but with passenger revenue still 20 per cent below 2019 levels, securing a bright future means we have change and move with the times.
"Only then can fund the pay rise we want to give our people, while delivering the more reliable Sunday services and improved punctuality our passengers deserve."
Due to the Network Rail strike, all rail passengers in the country are facing disruption.
The 14 train firms directly impacted by the strike are:
- London Northwestern Railway (and its parent company West Midlands Trains)
- Avanti West Coast
- Chiltern Railways
- CrossCountry
- c2c
- East Midlands Railway
- Gatwick Express, Great Northern, Southern and Thameslink
- Greater Anglia (including Stansted Express)
- Great Western Railway
- LNER
- Northern
- Southeastern
- South Western Railway
- TransPennine Express
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here