ETFOMM Features

Advanced Computing Features

Native 64-bit application architecture.
Multiple-core and multiple-thread processing.
Parallel processing for surface-street and freeway vehicles.
Distributed architecture through Windows Communication Foundation.
Multiple simulation runs deployed across different CPUs.

Component-based structure reflecting real-world elements such as vehicles, detectors, and traffic-control systems.
Data and function access for commonly used simulation components.
Multiple network communcations protocol support, including HTTP, TCP/IP, and SOAP.
Cross-platform and mobile computing through HTTP/SOAP interfaces.
Application integration from languages such as C#, C++, Visual Basic, HTML, Python, and other environments that support web-service.

ETAPI Research Interface

ETAPI allows external applications to communicate with the ETFOMM simulation engine and modify selected simulation data during a run.

Access and modify vehicle attributes such as desired speed, turning code, and destination.
Access and modify fixed-time signal parameters, including green durations and current intervals.
Interface user-developed traffic signal control algorithms with ETFOMM.
Interface user-developed lane-changing and car-following algorithms through ETAPI examples.

Traffic Control and Network Operations

Advanced Signal Control

ETFOMM supports advanced traffic signal control at intersections, including enhanced FHWA open-source traffic signal controller algorithms, standard NEMA operations, coordination and transition logic, complex intersections, and direct Texas three-leg and four-leg diamond interchange phasing. ETFOMM also incorporates CORSIM freeway ramp-metering algorithms, extending its freeway operations capabilities for corridor analysis.

Modern Networks

The model supports complicated freeway-to-freeway direct connections without dummy links or nodes, path- and turning percentage-based simulation, direct freeway diversion for integrated corridor management, and variable time steps that can be as small as 0.01 seconds.

Multimodal Operations

ETFOMM supports multimodal operations analysis, including basic bicycle and pedestrian movements, bus operations on surface streets and freeways, and streetcar, light rail, and train operations on dedicated rights-of-way. It also supports priority and preemption control for transit and rail operations, including control strategies at highway-rail grade crossings, as well as lane-specific vehicle-type restrictions and exclusions.

Selected Unique Features

Compatibility with existing legacy TSIS/CORSIM TRF files.
Export to TRAFVU for visulization.
Freeway diversion for integrated corridor management.
Lane-width effects on desired freeway speed.
Support for Linux and additional platforms.
No 8,000-node entry and exit limitation.
Remodeled intersection vehicle movement logic.
Red-light-running measures of effectiveness.
Dilemma-zone red light aviodance.
Integrated surrogate safety assessment functions.
Pitt, IDM, ACC, CACC, and mixed car-following logics.
Collision-avoidance, discretionary lane-changing, and mandatory lane-changing logic.
Lane-change acceptable-risk modeling.
Path-following vehicle logic.
Import roadway networks from OpenStreetMap and DTALit.
Support merging and integrating separately developed ETFOMM network into one consistent ETFOMM network.