Work starts on ‘metropolitan’ high speed link in Beijing
http://www.railwaygazette.com/news/single-view/view/work-starts-on-metropolitan-high-speed-link-in-beijing.html
The rail line is expected to connect Beijing and Bazhou via Guan.
Since its total length is just 80 km and about 25% of the line runs parallel with Beijing Metro Daxing Line, it world be better to extend Daxing Line instead of constructing high speed rail.
But, considering capacity of Metro Line 4, which has through service to Daxing Line, Quadruple tracking would be necessary in downtown sections.
