1900 There are about 15,195 miles of railway routes in Britain.
1902 Automatic signalling makes its first appearance between Andover and Grately.
1910 There are about 16,148 miles of railway routes in Britain.
1911 The first general rail strike in Britain is called. Two workers are shot dead in Llanelli as the army is called in to restore order.
1915 227 people are killed when a military train collides with a passenger train at Gretna Green. Most are killed by a fire that swept through the gas-lit wooden troop train. It is Britain's worst ever rail disaster.