Air traffic control 14 Street traffic control 12 Traffic control 11 Intelligent systems 10 Traffic signals 10 Traffic congestion 8 TA Engineering (General). Civil engineering (General) 7 Technology: general issues 7 Intelligent vehicle highway systems 6 Motor transportation 6 Roads and streets 6 Traffic flow 6 Vehicles 6 Accidents 5 History of engineering and technology 5 Advanced traffic management systems 4 Deep learning 4 Forecasting 4 Highway administration 4 Highway traffic control 4 Internet of things 4 Machine learning 4 Number of vehicles 4 Smart city 4 TJ Mechanical engineering and machinery 4 Adaptive traffic management system 3 Automation 3 Controllers 3 Convolution 3 DBSCAN method 3