Wikipedia:Articles for deletion/List of world's most expensive transport infrastructure
very good points made by nominator, but I think this list can be fixed rather than deleted. I don't think it is necessarily  to have a superlative list based on a comparison of reliably-sourced information - comparing dollars to dollars is not |original research. I agree that it would be better divided into lists by type of infrastructure, but I think the key for longer-term projects is following the sources to determine which qualify as singular projects versus combinations of separate projects. For example, the Interstate Highway System is commonly referred to in reliable sources as a singular venture and there is a reliable source for its singular cost, although individual improvements are considered separate (e.g. Big Dig). Other large maintenance projects are considered separate infrastructure projects (e.g. Eastern span replacement of the San Francisco–Oakland Bay Bridge), and some projects are actually several smaller projects lumped together as one major project by reliable sources (e.g. Honshū–Shikoku Bridge Project). Probably the list should only include projects which are complete or substantially under construction; projects which are well-known but aren't approved can't have a reliable source for their cost and shouldn't be included (looking at you, Hurontario-Main LRT). Reliable sources should be available in the linked articles; it's a different problem if they're not
— User:Ivanvector, 18:02, 5 March 2015 (UTC)
Stance: keep
Cited policy: WP:SYNTH||WP:OR (Wikipedia:No original research)