John Cletheroe's
Trainz Hintz - A Step-By-Step Guide To Making A Very Simple TRS2004 Scenario

TRS2004 Scenario Creation Tutorial - Part Two: The Differences Between Driver Sessions And Scenarios

For the normal user, the differences between Driver Sessions and Scenarios are relatively straightforward:

Driver Sessions are created in Surveyor using a graphical interface to assemble Driver Commands and Rules. When the Driver Session is run, the Driver Commands for the currently selected train are displayed along the bottom of the screen and can be changed.
Scenarios are created by writing in a programming language. Scenarios can give the users instructions, set them challenges, and measure their performance.

Technically, the difference is much more complicated and I won't pretend to fully understand it. For example, at the Razorback Railway, Larry ("Jenolan") has developed a way to compile a TRS2004 scenario's source code into a TRS2006 Driver session.

One particularly important difference is that a Scenario can use a modified form of a layout with additional trackside objects such as trackmarks and triggers. The user only needs to have the basic layout installed and the Scenario automatically adds the other trackside objects it requires when it runs. As far as I know normal Driver Sessions created in Surveyor cannot do this.

TRS2004, TRS2006, Trainz Classics (also called Trainz Railways and Trainz Railwayz) and TS2009WBE provide facilities for creating and editing Driver sessions in Surveyor, and for running them.

TRS2004 provides facilities for creating the framework for scenarios in Surveyor, and for running them. TRS2006, TC and TS2009WBE do not have either of these facilities.

Some Trainz documentation refers to Driver Sessions as Profiles. Some Trainz documentation refers to Rules as Behaviours or Behaviors.

Index

Part One: Introduction

Part Three: Trainz Pro Routes' Scenario Creation System (SCS)

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Most recently modified 15-Sep-09