Sarah Jones, Central Croydon MP, calls for the government to invest £1 billion in the Brighton main line.
She was speaking in the House of Commons when she warned that the construction of new houses in Croydon will only benefit the borough if the train lines are improved.
She said: “More housing will kick-start productivity only if the right type of infrastructure supports it.
“Croydon Council recently gave the green light to a transformative project led by Westfield and Hammerson to bring thousands of new jobs and homes to Croydon, but we are hampered by our infrastructure.
“East Croydon station has the second highest number of rail interchanges in the country.
“The Brighton main line, which serves Croydon and other important south London destinations, desperately needs £1 billion to handle the increase in demand that it will face in the coming years. Overcrowding on the network is hampering our productivity.