A 4 rail tracks modern white brick Tunnel with 2 square openings. Mainly used where 2 major double tracks diverge or join, possibly sometimes near railway stations. When placing this tunnel into your route, please place the first section straight and only use gentle curves in bends on account of limitations of the width of this tunnel.
From TS12 V3.7 onwards. Find this tunnel in your Scenery/Spline Tab in Surveyor.