TRansportation ANalysis SIMulation System [TRANSIMS]
The TRansportation ANalysis SIMulation System [TRANSIMS] is a set of new transportation and air quality analysis and forecasting procedures developed to meet the Clean Air Act, the Intermodal Surface Transportation Efficiency Act, Transportation Equity Act for the 21st Century, and other regulations. It consists of mutually supporting simulations, models, and databases that employ advanced computational and analytical techniques to create an integrated regional transportation system analysis environment. By applying advanced technologies and methods, it simulates the dynamic details that contribute to the complexity inherent in today’s and tomorrow’s transportation issues. The integrated results from the detailed simulations will support transportation planners, engineers, decision makers, and others who must address environmental pollution, energy consumption, traffic congestion, land use planning, traffic safety, intelligent vehicle efficiencies, and the transportation infrastructure effect on the quality of life, productivity, and economy.
Selected Publications
C. L. Barret, R. J. Beckman, K. P. Berkbigler, B. W. Bush, L. M. Moore, and D. Visarraga, “Actuated Signals in TRANSIMS,” Los Alamos National Laboratory, Report LA-UR-01-4609.
This report outlines recent work implementing and calibrating actuated traffic controls and vehicle detectors in TRANSIMS. We have developed a generic control that provides a flexible approach to representing such devices. Although not modeled upon specific existing hardware or algorithms, our implementation provides a responsive control over a wide variety of demand conditions.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, J. Ramos, S. Ree, P. R. Romero, J. P. Smith, L. L. Smith, P. L. Speckman, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS 2.0: Transportation Analysis Simulation System: Volume 6 - Installation,” Los Alamos National Laboratory, Report LA-UR-00-1767.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, J. Ramos, S. Ree, P. R. Romero, J. P. Smith, L. L. Smith, P. L. Speckman, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS 2.0: Transportation Analysis Simulation System: Volume 5 - Software Interface Functions and Data Structures,” Los Alamos National Laboratory, Report LA-UR-00-1755.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, J. Ramos, S. Ree, P. R. Romero, J. P. Smith, L. L. Smith, P. L. Speckman, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS 2.0: Transportation Analysis Simulation System: Volume 4 - Calibrations, Scenarios, and Tutorials,” Los Alamos National Laboratory, Report LA-UR-00-1766.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, J. Ramos, S. Ree, P. R. Romero, J. P. Smith, L. L. Smith, P. L. Speckman, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS 2.0: Transportation Analysis Simulation System: Volume 3 - Modules,” Los Alamos National Laboratory, Report LA-UR-00-1725.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, J. Ramos, S. Ree, P. R. Romero, J. P. Smith, L. L. Smith, P. L. Speckman, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS 2.0: Transportation Analysis Simulation System: Volume 2 - Networks and Vehicles,” Los Alamos National Laboratory, Report LA-UR-00-1724.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, J. Ramos, S. Ree, P. R. Romero, J. P. Smith, L. L. Smith, P. L. Speckman, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS 2.0: Transportation Analysis Simulation System: Volume 1 - Technical Overview,” Los Alamos National Laboratory, Report LA-UR-00-1723.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, J. Ramos, S. Ree, P. R. Romero, J. P. Smith, L. L. Smith, P. L. Speckman, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS 2.0: Transportation Analysis Simulation System: Volume 7 - Methods in TRANSIMS,” Los Alamos National Laboratory, Report LA-UR-02-4217.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, P. R. Romero, J. P. Smith, L. L. Smith, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS Portland Study Reports: 8. Appendix: Scripts, Configuration Files, Special Travel Time Function,” Los Alamos National Laboratory, Report LA-UR-01-5716.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, P. R. Romero, J. P. Smith, L. L. Smith, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS Portland Study Reports: 5. Postprocessing for Environmental Analysis,” Los Alamos National Laboratory, Report LA-UR-01-5715.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, P. R. Romero, J. P. Smith, L. L. Smith, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS Portland Study Reports: 4. General Results,” Los Alamos National Laboratory, Report LA-UR-01-5714.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, P. R. Romero, J. P. Smith, L. L. Smith, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS Portland Study Reports: 3. Feedback Loops,” Los Alamos National Laboratory, Report LA-UR-01-5713.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, P. R. Romero, J. P. Smith, L. L. Smith, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS Portland Study Reports: 2. Study Setup: Parameters and Input Data,” Los Alamos National Laboratory, Report LA-UR-01-5712.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, K. Campbell, S. Eubank, K. M. Henson, J. M. Hurford, D. A. Kubicek, M. V. Marathe, P. R. Romero, J. P. Smith, L. L. Smith, P. E. Stretz, G. L. Thayer, E. Van Eeckhout, and M. D. Williams, “TRANSIMS Portland Study Reports: 1. Introduction/Overiew,” Los Alamos National Laboratory, Report LA-UR-01-5711.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 6 - Installation,” Los Alamos National Laboratory, Report LA-UR-99-2580.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 3 - Files,” Los Alamos National Laboratory, Report LA-UR-99-2579.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 2 - Software, Part 5 - Libraries,” Los Alamos National Laboratory, Report LA-UR-99-2578.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 2 - Software, Part 4 - Tools,” Los Alamos National Laboratory, Report LA-UR-99-2577.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 2 - Software, Part 3 - Test Networks,” Los Alamos National Laboratory, Report LA-UR-99-2576.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 2 - Software, Part 2 - Selectors,” Los Alamos National Laboratory, Report LA-UR-99-2575.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 2 - Software, Part 1 - Modules,” Los Alamos National Laboratory, Report LA-UR-99-2574.
C. L. Barrett, R. J. Beckman, K. P. Berkbigler, K. R. Bisset, B. W. Bush, S. Eubank, J. M. Hurford, G. Konjevod, D. A. Kubicek, M. V. Marathe, J. D. Morgeson, M. Rickert, P. R. Romero, L. L. Smith, M. P. Speckman, P. L. Speckman, P. E. Stretz, G. L. Thayer, and M. D. Williams, “TRANSIMS (TRansportation ANalysis SIMulation System) 1.0: Volume 0 - Overview,” Los Alamos National Laboratory, Report LA-UR-99-1658.
C. Barrett, R. Beckman, K. Berkbigler, K. Burris, B. Bush, R. Donnelly, S. Hull, J. Hurford, D. Kubicek, P. Medvick, K. Nagel, D. Roberts, L. Smith, M. Stein, P. Stretz, and S. Sydoriak, “Transportation Analysis Simulation System (TRANSIMS) Version 1.0 User Notebook,” Los Alamos National Laboratory, Report LA-UR-98-848.
R. J. Beckman, K. P. Berkbigler, B. W. Bush, and P. Stretz, “TRANSIMS: Portland study calibration of river crossing screen lines,” Los Alamos National Laboratory, Report LA-UR-01-1921.
R. J. Beckman, B. W. Bush, K. M. Henson, and P. E. Stretz, “Portland Study Synthetic Population,” Los Alamos National Laboratory, Report LA-UR-01-4610.
TRANSIMS (Transportation Analysis and Simulation System) is an integrated system of travel forecasting models designed to give transportation planners accurate, complete information on traffic impacts, congestion, and pollution. The Population Synthesizer Module constructs a regional population imitation with demographics closely matching the real population. Households are distributed spatially to approximate regional population distribution. The synthetic population’s demographics form basis for individual and household activities requiring travel and their household locations determine some of the travel origins and destinations. This report outlines how we have constructed the synthetic population for our Portland, Oregon, case study. It also briefly summarizes the characteristics of the data, and how we verified that the data was correctly generated.
K. P. Berkbigler and B. W. Bush, “TRANSIMS Network Subsystem for IOC-1,” Los Alamos National Laboratory, Report LA-UR-97-1580.
The TRANSIMS network representation provides access to detailed information about streets, intersections, and signals in a road network. It forms a layer separating the other subsystems from the actual network data tables so that the other subsystems do not need to access the data tables directly or deal with the format and organization of the tables. This subsystem allows the user to construct multiple subnetworks from the network database tables. It includes road network objects such as nodes (intersections), links (road/street segments), lanes, and traffic controls (signs and signals).
K. P. Berkbigler and B. W. Bush, “TRANSIMS simulation output subsystem for IOC-1,” Los Alamos National Laboratory, Los Alamos, New Mexico, Technical Report LA-UR–97-1226. <http://www.osti.gov/energycitations/servlets/purl/501501-8MefLN/webviewable/>
The output subsystem collects data from a running microsimulation, stores the data for future use, and manages the subsequent retrieval of the data. It forms a layer separating the other subsystems from the actual data files so that the other subsystems do not need to access the data files at the physical level or deal with the physical location and organization of the files. This subsystem also allows the user to specify what data is collected and retrieved, and to filter it by space and time. The collection occurs in a distributed manner such that the subsystem`s impact on the microsimulation performance is minimized; the retrieval provides a unified view of the distributed data.
K. P. Berkbigler, B. W. Bush, and J. F. Davis, “TRANSIMS Software Architecture for IOC-1,” Los Alamos National Laboratory, Report LA-UR-97-1242.
This document describes the TRansportation ANalysis SIMulation System (TRANSIMS) software architecture and high-level design for the first Interim Operational Capability (IOC-1). Our primary goal in establishing the TRANSIMS software architecture is to lay down a framework for IOC-1. We want to make sure that the various components of TRANSIMS are effectively integrated, both for IOC-1 and beyond, so that TRANSIMS remains flexible, expandable, portable, and maintainable throughout its lifetime. In addition to outlining the high-level design of the TRANSIMS software, we also set forth the software development environment and software engineering practices used for TRANSIMS.
K. P. Berkbigler, B. W. Bush, K. Campbell, S. Eubank, D. A. Kubicek, D. J. Roberts, P. R. Romero, J. P. Smith, P. Stretz, and M. D. Williams, TRANSIMS. Los Alamos National Laboratory.
M. P. Blue and B. W. Bush, “Set Entropy of Block Configurations That Appear in the TRANSIMS Simulation,” Los Alamos National Laboratory, Report LA-UR-01-4277.
B. W. Bush, “TRANSIMS Database Subsystem for IOC-1,” Los Alamos National Laboratory, Report LA-UR-97-987.
The TRANSIMS database subsystem provides low-level services for accessing and modifying TRANSIMS data. It forms a layer separating the other subsystems from the actual data files so that the other subsystems do not need to access the data files at the physical level or deal with the physical location and organization of the files. This subsystem also organizes the data and supports a variety of metadata. It uses a relational model for the storage of data.
B. W. Bush, “TRANSIMS Input Editor System for IOC-1,” Los Alamos National Laboratory, Report LA-UR-97-1642.
The TRANSIMS input editor provides a means for managing the TRANSIMS database, editing road network data, and setting up scenarios for simulation via its graphical user interface (GUI). It separates the user from the lower-level layers of TRANSIMS software involved with data management. It has functions for manipulating data in the TRANSIMS database; for creating, importing, altering, validating, and viewing road network data; and for setting up simulation output tables. The input editor is integrated into the ArcView geographic information system (GIS) and the Oracle relational database. One can also customize or extend the input editor using the Avenue programming language.
B. W. Bush, “TRANSIMS and the hierarchical data format,” Los Alamos National Laboratory, Los Alamos, New Mexico, Technical Report LA-UR–97-2240. <http://www.osti.gov/energycitations/servlets/purl/516007-rkPCoV/webviewable/>
The Hierarchical Data Format (HDF) is a general-purposed scientific data format developed at the National Center for Supercomputing Applications. It supports metadata, compression, and a variety of data structures (multidimensional arrays, raster images, tables). FORTRAN 77 and ANSI C programming interfaces are available for it and a wide variety of visualization tools read HDF files. The author discusses the features of this file format and its possible uses in TRANSIMS.
B. W. Bush, K. P. Berkbigler, and L. L. Smith, “TRANSIMS Data Preparation Guide,” Los Alamos National Laboratory, Report LA-UR-98-1411.