With a track record of successful projects over several decades, principals of the firm are now moved on, one now with a Major Prime which had previously been a ocllaborator. Advanced Technologies had developed an open source dual redundant traffic signal control environment, called the Signal Control Program Environment. This program, abbreviated as SCOPE, both pretimed and actuated control modes. In actuated mode, had min recall, max recall, gap out, max gap, and presence modes that include NCHRP 3-66 Signal Transition Logic concepts. SCOPE interfaced with both NEMA-TS2 and Intelligent Transportation Systems (ITS) traffic cabinets. SCOPE had been run on four different hardware platforms; a PC (used for concept and unit testing), a PowerPC prototype board with various I/O connectors (used for integration testing), a $35 Raspberry PI SOM, and an Advanced Traffic Controller (currently, a PEEK ATC-1000). SCOPE also has been integrated with the open source TEXAS traffic control simulator. All software requirement, design, implementation, testing, configuration management and documentation tools used to develop SCOPE are open source and free.
