Chuka has received hundreds of letters and emails from local Streatham residents and commuters using Southern Rail and Thameslink services (both operated by Govia Thameslink) in his constituency.
Chuka said: "Like many of the people who have written to me I am all too familiar with the frequent delays, cancellations, and unpredictable changes to journeys from, to and through Streatham’s three stations.
"Indeed, the Govia Thameslink franchise is almost consistently at the bottom of Network Rail’s Public Performance Measure, the industry standard measure of performance, with services consistently slated in passenger satisfaction surveys. This is simply unsustainable.
"The daily impact of this disruption - commuters late for work, children late for school, and overcrowded and uncomfortable journeys - is extremely frustrating and are completely unacceptable.
Recent plans presented to the RMT union by Govia Thameslink suggest 350 services could be axed by Southern Rail in an attempt to deal with disruptions. However, cancelling services that many people rely on a daily basis to get to work and school on is simply not good enough.
Chuka added: "A long term solution to the poor service should hopefully be secured following the Department for Transport’s confirmation that it has accepted calls to bring Greater London suburban services under Transport for London control.
"However, this cannot currently happen for services through Streatham until the Govia Thameslink franchise is due for renewal in 2021. With repeated promises to improved services in the meantime falling short, I am calling on the government to terminate the franchise early, and to bring the services under the control of Transport for London as soon as practically possible.
"To this end, I have tabled an Early Day Motion in the House of Commons to gather the support of parliamentary colleagues.
"On top the frustrations we feel towards Govia Thameslink’s appalling service, I know that many constituents and commuters also share my disappointment that Streatham appears to have been once again overlooked regarding the potential route of Crossrail 2. The proposed route has not yet been finalised and I am determined to do all that I can to highlight the case for Streatham to be reconsidered as a destination.
"I have recently written to Sadiq Khan, Mayor of London, and Val Shawcross, Deputy Mayor of London for Transport, to highlight Streatham’s transport problems and urge them to consider including Streatham within the route for Crossrail 2. Back in March I also wrote to the Chancellor, George Osborne, urging him to ensure that vital development funding is made available for Crossrail 2 to proceed.
"Over the coming months I will be doing all that I can to get a better transport deal for Streatham’s constituents and commuters – whether that is continuing to meet with Network Rail officials, calling for Govia Thameslink to be stripped of their franchise, tabling Early Day Motions and Parliamentary Questions, or making further representations to the Government and Greater London Assembly on your behalf.
"I will not rest until Streatham is served by a fit for purpose rail network."