This session is for Urban IndustRail 5a. It uses only Trainz default rolling stock. It is 0550 on a crisp clear morning. You have signed on at the Yard Office and have just climbed aboard your ATSF SD40-2 that has been left idling on the spur track at Invercargill loco. The Dispatcher has told you to take the empty tank cars from Invercargill Chemicals for filling with crude oil at Conoco Petrochemicals, then go light engine to pick up box cars at the Acme Widget Plant, and finally return to Invercargill, picking up the loaded tank cars and more box cars along the way. The full tank cars are to be left at Invercargill Chemicals; the box cars in Invercargill Transfer for pick up by a Class 1 railroad wayside freight. Class 1 railroad freight trainz will also be running northward at 5 minute intervals. The Class 1 railroad trainz use the track with concrete sleepers. However, there are sections of shared track at squeeze points (bridges, tunnels, ... ) and through some yards. You must always give right-of-way to the Class 1 railroad trainz. A map and readme is included.