This would make it easier and quicker to travel, and support sustainable growth and new, affordable homes.
To do this we need to change how we plan and run the rail network. By viewing the transport network as a whole, rather than individual lines run by different companies, we have an opportunity to radically reshape the network around customers and communities, at the same time as running more efficiently.
London's population will rise to 10 million by 2030 - and from 15 to 17 million in the surrounding regions. Improving the rail network is essential to creating extra housing and jobs, as well as enhancing people's quality of life.
Rather than building new lines from scratch, we could redesign the existing services to reduce bottlenecks, free up more space on trains, and create direct connections.
Transforming the suburban rail network within and just beyond the southern London boundary into a single, integrated network would bring:
Our strategic case is an argument for change. We hope it will start conversations with representatives and partners in south and southeast London.
The case for 'Metroisation' sets out some of the action needed to address these challenges and support better journeys, new homes and access to jobs.
In September 2018, the Government launched the Williams Rail Review to look at the structure of the whole rail industry and the way passenger rail services are delivered. The review will make recommendations for reform that prioritise passengers' and taxpayers' interests.
The review's findings and recommendations will be published in a government white paper in autumn 2019 and reform will begin in 2020. We submitted our evidence to the review in January 2019.
In October 2016 we presented a business case on rail devolution to the Secretary of State for Transport.
In September 2016 we presented a paper to our Board that summarised proposals we published in January 2016.
In January 2016 we published a joint proposal with the DfT that would improve customer journeys and support economic growth in the Capital and the rest of the South East.
The Government held a consultation in February-May 2017 on a new franchise for rail services in southeast London and Kent.
We have responded to the Government's consultation.