The Power of TrainOps


TrainOps Applications


Ease of Use


Case Histories


TrainOps Modeling Flexibility  
Mainline railroad, very high speed rail, monorail, Automated Guideway Transit (“people movers”), streetcars, light rail and heavy rail traction power systems, as well as electric trolley bus systems, can be simulated.  TrainOps supports completely flexible rail network/traction power system modeling with all system components represented individually in the model. A typical simulation may include the following variations in rail network infrastructure and operational attributes:
  • Changes in gradients, curvature and speed restrictions (including different speeds for different train classes) as function of individual track or route,
  • Substations of different input voltages, output voltages, and power ratings,
  • Changes in third rail sections, overhead catenary, or trolley wire along the alignment,
  • Detailed representation of the positive circuit with jumpers between tracks and conductor section breaks,
  • Changes in running rail characteristics,
  • Detailed representation of the negative return circuits with cross-connections between rails. TrainOps includes series resistances due to impedance bonds and shunt resistances between the running rails and ground, supporting output of running rail-to-ground voltages and stray currents returning to system substations,
  • AC feeders and return circuits, positive and negative DC feeders of different cable types, resistances, and lengths,
  • Different vehicles and train make-ups (as multiple units or locomotive-hauled trains), including homogeneous and heterogeneous consists,
  • Different passenger station stopping patterns for each train trip, such as express, local and skip-stop train service,
  • Different passenger station dwell times for each station and train,
  • A different loading pattern for each train as it travels along the alignment making possible, for example, simulation of fully loaded trains in downtown areas and partially loaded trains in suburbs,
  • Static loads representing stationary trains in storage yards,
  • Outages of substations, feeder breakers, and feeders,
  • User-selectable time step, ranging from coarse computations for rapid-response planning studies to fine computations for sophisticated engineering analyses.

/uploadedImages/LTK/Software_Tools/13 WMATA trip grpah with cab signaling.jpg 

TrainOps trip graph for an ATC cab signal system with civil speed enforcement.  Graphs are dynamically updated while the simulation runs (note the right end of the green plot shows the current location of the train; the right end of the purple plot shows the limit of dispatcher route establishment for this train trip).

Powerful Automated Routing  

TrainOps performs run-time train routing that finds the best path for each trip through your rail network.  Unlike competing products which force users to manually route trains or that try thousands of routing combinations before settling on a workable solution, TrainOps’ powerful “look ahead” algorithms route trains as a dispatcher would – while they move through the network.  Automated routing capabilities in TrainOps include:

  • No limit on the number of Train Classes in the simulation, each with different levels of dispatching priority,
  • Automatic terminal route selection, including turnback and yard layup/put-in considerations,
  • Automatic routing through the rail network, including traffic directionality, reversal time and fleeting considerations,
  • Support for track outage planning, including platooning of movements to maximize system velocity,
  • Automatic selection from among multiple yard leads if one is blocked or is about to be used in a different direction.

/uploadedImages/LTK/Software_Tools/07 SRTD Substation current and power-20110623.jpg

TrainOps run-time graph of voltage, current and power as a function of simulated time for a user-selected substation.

Speeding the Model Development Process  

TrainOps was specifically developed to enable comprehensive modeling and studies of AC and DC-electrified railroad and transit train operation, as well as operations of fossil fuel-powered trains. The program provides user-friendly inputs (including the ability to “cut and paste” from spreadsheets) for all relevant system and rolling characteristics, including:

  • Route alignment data, including track gradients, horizontal alignment and speed restrictions (which can differ by train class),
  • Passenger station locations,
  • Train data, including weight, dimensions, propulsion system characteristics, and braking system parameters,
  • System train control data, including wayside signaling, cab signaling and Positive Train Control inputs (optional),
  • Electrical power supply system data, comprising traction power supply substations and tie stations (circuit breaker houses),
  • Railroad sub-transmission system (optional),
  • Electrical distribution system, such as overhead catenary, trolley wire system, or third rail system, and substation feeder cables,
  • Operations data, such as train consist sizes, train consist manipulations at terminals/yards, operating plan (timetable) inputs, passenger station stopping pattern, and station dwell times.

/uploadedImages/LTK/Software_Tools/07a WMATA Red Line string chart.jpg

TrainOps time-distance string chart for rapid transit service ramp-up, including color coding by track and representation of midline turnback locations.

Supporting Rail Networks of All Sizes  
 TrainOps is developed using modern software technologies and development methods. There is no inherent software limit on the size of the rail network, the complexity of the traction power system, the number of trains that can be simulated, or the duration of simulation. In short, it can model any rail network of any size. 

/uploadedImages/LTK/Software_Tools/12 route.jpg

TrainOps run-time graphics show the status of each interlocking route, including solid (no route requested or established), orange band shading (route requested but not yet established), white band shading (route established) and gray band shading (route being released).