Principle | Advantage | Disadvantage |
Undedicated Mobile Phones | 1) Relies on acceleration 2) Energy Efficient 3) Measures speed, congestion | 1) Accelerometer measurements prone to inaccuracies, erroneous data 2) Depends on multiple cellular service providers for location detection |
Anonymized Signaling | 1) Active and Idle handsets 2) Energy Efficient 3) Large sample size 4) Measures average speeds | 1) Vehicle passing boundaries of cell sites with a traffic junction them, encounter green or red phase, which introduces error 2) Depends on multiple cellular service providers for location detection |
Traffic flow prediction | 1) Simulator on history data 2) Real time data submitted to get prediction results | 1) Implementation not in real time |
COTraMS | 1) Employs IEEE networks 2) Energy Efficient | 1) Requires RSU installed on road side making it operationally challenging 2) Requires IEEE 802.11 infrastructure |
SBTM (Spatiotemporal Traffic Bottleneck Mining) | 1) Identifies traffic bottlenecks 2) Location based services 3) Accuracy of Prediction > (Congestion converge OR Congestion drop) | 1) Depends on multiple cellular service providers for location detection 2) Not in real time |
Localized Handling Network Event Systems (LocHNESs) | 1) Accepts fixed as well as GPS enabled sensor | 1) Large datasets 2) Computation intensive 3) Dependence on multiple data agency |
AFRC | 1) Network of Controllers communicate 2) Compute congestion levels 3) Disseminates information to traffic junction ahead | 1) Physical installation of controller 2) Data acquisition from roadside sensor is a challenging hardware issue |
Real Time System | 1) GPS Sensors 2) Real time system | 1) No inroad sensors 2) No latency 3) Accurate |