3.1.3.0-2 All the signals are relatively close and are expected to be coordinated as one group. 3.1.3.0-3 While the signals are relatively close, the traffic conditions are such that they will normally be coordinated as two (or more) separate and independent groups. 3.1.3.0-4 the signals are relatively close, the traffic conditions vary and sometimes they would be expected to be coordinated as one group, while at other times they may be coordinated as two (or more) separate and independent groups. 3.1.3.0-5 Although the signals are all on the one route, the distance between them is sufficiently great that they will normally be coordinated as two (or more) separate and independent groups. 3.1.3.0-6 The signals to be coordinated are on two (or more) arterials separated by XX miles, and will always be operated as two separate groups. 3.1.3.0-7 While the signals will normally be operated as two (or more) separate and independent groups, there are occasions (such as when there is a major incident on the parallel freeway) when they should operate as one coordinated unitalong the same arterial. 3.1.4 3.1.4 Land Use Characteristics 3.1.4.1 3.1.4.1 Existing Land Uses 3.1.4.1.0-1 The arterial.... 3.1.4.1.0-1.0-1 Passes through residential neighborhoods. 3.1.4.1.0-1.0-2 Frontage land uses are mainly retail (E.g, strip mall with numerous driveways, shopping mall with several signalized driveways, big box outlet). 3.1.4.1.0-1.0-3 Frontage land uses are mainly offices. 3.1.4.1.0-1.0-4 Frontage land uses are mainly commercial. 3.1.4.1.0-1.0-5 Frontage land uses are mainly service trades. 3.1.4.1.0-1.0-6 Frontage land uses are mainly manufacturing.
3.3.0-8 Keep signal timing current rather than letting its efficiency deteriorate between periodic signal re-timing efforts. 3.4 3.4 Vision, and Objectives for the Proposed System 3.4.1 3.4.1 Vision 3.4.1-1 The vision of the ASCT system is to provide an advanced traffic control system that responds to changing traffic conditions, and reduces delays and corridor travel times, while balancing multimodal transportation needs. 3.4.2 3.4.2 Goals 3.4.2-1 The goals of the ASCT system are: (Select from the following items and customize to suit your situation.) 3.4.2-1.0-1 Support vehicle, pedestrian and transit traffic mobility. 3.4.2-1.0-2 Provide measurable improvements in personal mobility 3.4.2-1.0-3 Support interoperability between agencies 3.4.2-1.0-4 Support regional systems 3.4.2-1.0-5 Support congestion environmental policy objectives 3.4.2-1.0-6 Meet a timely project implementation schedule 3.4.3 3.4.3 User Objectives 3.4.3.0-1 The objectives of the adaptive system that support the stated goals are: (Select from the following items and customize to suit your situation.) 3.4.3.0-1.0-1 To support vehicle, pedestrian and transit traffic mobility: Be capable of supporting priority operations for rail and buses effective use of all controller features currently in use or proposed to be used Minimize adverse effects caused by preemption and unexpected events 3.4.3.0-1.0-2 To support measurable improvements in personal mobility:
(Sequence-based only) The ASCT shall increase the limit for the following XX cycles based on a change in conditions. 2.2.0-5.0-4.0-1.0-2 (Sequence-based only) The increased limit shall be 2.2.0-5.0-4.0-1.0-1 (Sequence-based only) The change in conditions shall be defined by XX successive adaptive increases in cycle length at the maximum rate. 2.1.1.0-10 4.1.0-1.0-5 Manage the locations of queues within the network Note to user when selecting these requirements: Select from requirements in the 2.2 group when sequence-based systems are allowed (sequence-based systems explicitly calculate cycle, offset, and split). Select from requirements in the 2.3 group when systems are allowed systems do not explicitly calculate cycle, offset, and split). (Select requirements from both groups when the vendor is given the choice of supplying one type of adaptive operation or the other.) 2.1.3.0-2 When queues are detected at user-specified locations, the ASCT shall execute user-specified timing plan/operational mode. 2.2.0-3 (Sequence-based only) The ASCT shall calculate phase lengths for all phases at each signal controller to suit the current coordination 2.1.3.0-1 The ASCT shall detect the presence of queues at locations. 2.1.3.0-3 When queues are detected at user-specified locations, the ASCT shall execute user-specified adaptive operation strategy. 2.1.3.0-4 configured
4.1.0-9 The system operator needs to set signal timing parameters (such as minimum green, maximum green and extension time) to comply with agency policies. 2.1.1.0-12 The ASCT shall not prevent the use of phase timings in the local controller set by agency policy. 4.2 4.2 Network characteristics 4.2.0-1 The system operator needs to eventually adaptively control up to signals, up to 30miles from the TMC (or specified location). 1.0-1 The ASCT shall control a minimum of signals concurrently 4.2.0-2 The system operator needs to be able to adaptively control up to independent groups of signals 1.0-2 The ASCT shall support groups of signals. 1.0-2.0-2 The ASCT shall control a minimum of groups of signals. 1.0-2.0-4 Each shall operate independently 1.0-2.0-1 The boundaries surrounding signal controllers that operate in a coordinated fashion be defined by the user. 4.2.0-3 The system operator to vary the number of signals in an adaptively controlled group to accommodate the prevailing traffic conditions. 1.0-2 The ASCT shall support groups of signals. 1.0-2.0-3 The size of a group shall range from 1 to signals. 1.0-2.0-5.0-1 The boundaries surrounding signal controllers that operate in a coordinated fashion shall be altered by the system according to a time of day schedule. (For example: this may be achieved by assigning signals to different groups or by combining groups.)
4.6.0-5 The system operator to accommodate early start of walk and exclusive pedestrian phases. 8.0-1 When a pedestrian phase is called, the ASCT shall execute pedestrian phases up to XX seconds before the vehicle green of the related vehicle phase. 8.0-4 The ASCT shall execute user-specified exclusive pedestrian phases during adaptive operation. 4.7 4.7 Non-adaptive situations 4.7.0-1 The system operator needs to detect traffic conditions during which adaptive control is not the preferred operation, and implement some pre-defined operation while that condition is present. 2.1.1.0-1 The ASCT shall operate non-adaptively during the presence of a defined condition. 4.7.0-2 The system operator needs to schedule pre-determined operation by time of day. 2.1.1.0-5 The ASCT shall operate non-adaptively in accordance with a user-defined time-of-day schedule. 4.7.0-3 The system operator needs to over-ride adaptive operation. 2.1.1.0-3 The ASCT shall operate non-adaptively when a user manually commands the ASCT to cease adaptively controlling a group of signals. 2.1.1.0-4 The ASCT shall operate non-adaptively when a user manually commands the ASCT to cease adaptive operation. 2.1.1.0-5 The ASCT shall operate non-adaptively in accordance with a user-defined time-of-day schedule. 4.8 4.8 System responsiveness
The ASCT shall not prevent the protected left turn phase to lead or lag the opposing through phase based upon conditions. 4.9.0-1.0-15 Use flashing yellow arrow to control permissive left turns and right turns. 7.0-11 The ASCT not prevent the controller from displaying flashing yellow arrow left turn or right turn. (SELECT AS APPLICABLE) 4.9.0-1.0-16 side streets and pedestrian phases at minor locations more often than at adjacent signals when this can be done without compromising the quality of the coordination. (E.g., double-cycle mid-block pedestrian crossing signals.) 7.0-13 When adaptive operation is used in conjunction with normal coordination, the ASCT shall not prevent serving a cycle length different from the cycles used at adjacent intersections. 4.9.0-1.0-17 Use pedestrian to prevent an overlap conflicting with a pedestrian walk/don't walk 8.0-9 The ASCT shall not inhibit pedestrian phase timing. 4.10 4.10 Monitoring and control 4.10.0-1 The system operator needs to monitor and control all required features of adaptive operation from the following locations: (Edit and select as appropriate to suit your situation.) 5.0-2 The ASCT shall provide monitoring and control access at the following locations: 4.10.0-1.0-1 TMC 5.0-2.0-1 Agency TMC 4.10.0-1.0-2 facility 5.0-2.0-2 facility
4.15.0-1.0-2 type (list acceptable equipment) 14.0-2 The ASCT shall fully satisfy all requirements when connected with detectors from manufacturer (specify required detector types). 4.15.0-1.0-3 system (list acceptable equipment) 4.15.0-1.0-4 Cabinet type and size (list acceptable equipment) 4.15.0-1.0-5 Signal management system (list acceptable systems) 4.15.0-2 Not used 4.15.0-3 The system operator needs to use equipment and software acceptable under current agency IT policies and procedures. 14.0-1 The vendor's adaptive software shall be fully operational within the following platform: (edit as appropriate) Windows-PC, Linux, Mac-OS, Unix. 4.15.0-4 Not used 4.16 4.16 Training and support 4.16.0-1 The agency needs all staff involved in operation and maintenance to receive appropriate training. 15.0-1.0-1 The vendor shall provide training on the operations of the adaptive system. 15.0-1.0-9