The Railway Mania (1844-1847)
The Railway Mania was a wild period of speculative investment and national change. Parliament received over 650 applications for new railway companies, proposing nearly 30,000 miles of track—more than double the size of the network that was actually built.
The social impact was huge. Isolated communities were suddenly connected to markets hundreds of miles away. Farm goods could reach cities in hours, not days, and manufactured goods spread to rural areas with new efficiency. The Royal Mail's use of railways changed communication, allowing same-day letters between major cities.
Parliamentary scrutiny grew stricter as competing plans emerged. Railway committees examined engineering feasibility, finances, and public benefit, setting rules for infrastructure planning that still matter today. Many schemes failed, but the survivors formed the backbone of Britain's transport system.