Down
1 City in Azerbaijan site of Metro Disaster in 1995. (4)
2 "The Railway ________" by E. Nesbit (8)
3 Under-Lyme? (6)
4 A 3ft Gauge Rio Grande Southern Railway in Colorado (7)
5 Essential for Boarding the Train, Optional on the Continent (8)
6 Train off the Track? (6)
7 Humming on the Louisville & Nashville, Chicago and Eastern Illinois Railroad (4)
14 The panic of the searchers, crying which petrifies the trapped still _____ within the flame, Quintshill by Denis R Muir (5)
16 "Bye, Bye Black ______ Choo Choo" by Joe Glazer (5)
18 _________ Kingdom Brunel (8)
20 Michael ________, Star of "The Lady Vanishes" (8)
21 Station Opened by the Quakers Yard & Merthyr Railway, now part of the Taff Trail (7)
23 "All he ______ was the eight…” Spanish Train by Chris de Burgh (6)
25 GWR Station Closed in 1963 (6)
27 Karl Gölsdorf invented an ____System (4)
29 Associated with Andalusia and Conecuh (4)