Detailed description

The current version of the simulation is trying to deliver figures to judge the basic hypothesis. It aims to:

  • show and illustrate the train runs
  • calculate the performance results

The circle train system is a based on simplifications to keep calculation simple and easy. 2 more simplifications are specific for this simulation:

  • The trains run only one way
  • They run only to the 2 next points

The reason is also simplification: If trains would run 2 ways the display would only be more confusing in the graphic. For the calculation there would not be a benefit too: The capacity would double – provided that they leave the circle without crossing the opposite track. This might be discussed in a later version.

There is an explanation of the key concepts of a circle train, therefore they are not repeated here.

The calculation is using basic input data described on their own page.

There is also a page containing all the technical results, including the input parameters, but the base parameters are presented here in a more distinctive description.

The core of the simulation is a circle with a radius of 100 km.

All trains on the circle run with a constant speed of 100 km / h.

The start points and end points are points in North, East, South and West within a distance of 100 km from the circle. The train thus takes one hour to reach the circle and another hour to reach the destination after leaving the circle. These 4 points and the 100 km distance to the circle are of course also simplifications allowing a fast and easy visual controls of the runs and the results.

The simulation runs in a time laps, as nobody wants to stare for hours at the screen.

Once a train reaches the destination, its numbers are added to the total results of the circle for:

  • Travel time
  • Kilometers run
  • Ton-Kilometers transported
  • Energy consumed

Note: The videos were made on an elder simulation and the figures displayed on the graphic are based on elder input parameters. Since the numbers can hardly be read and the graphical didn’t change, this elder version is still used. For better readability and reviewability the input parameters as well as the results are displayed in a table.

The simulation allows to schedule any number of trains running from any start point to any destination point. It will stop scheduling, if there is no more space to add a train with enough security distance to the trains in front and behind.

The following movies builds up the full system by scheduling each train at first individually, then combining the trains that start at the same time and place and eventually running that combination every half an hour during one day.

Simulation of 1 Train running to the nearest destination point, eg East to South

The results are shown in the following csv-file (use eg Excel for display) Results for circle train_Freight running from East to South

( You can also find all results gathered).


Simulation of 1 Train running to the second nearest point, eg East to West

The results are shown in the the file ( You can also find all results gathered).


The next video combines these basic runs by showing

2 trains per start point:

  • The first train runs to the nearest point on the circle, in this case from east to south
  • The second train runs to the second nearest point on the circle

All train results summed up_2 Trains running from each startpoint to next and after next point


The following simulation shows the last scenario, that is

2 trains for every startpoint running to the nearest and second nearest point

Start every half an hour (synchronized timetable during 22 hours).

These are the Results for all Circle trains during one day running to next 2 points; 30 min interval during 22h You can also find all results.