(The following topics include but are not limited to)
Topic 1: Transportation Infrastructure
Urban transportation planning
Congestion management
Multimodal transportation
Non motorized integration
signal control 
Municipal upgrade
Highway planning
Evolution of Traffic Regulations
Policy adaptability
Topic 2: Rail Transit
Green transportation infrastructure
Climate impact
Ecological Corridor
Application of new materials
Innovation in Public Transportation
Electric vehicle facilities
Sustainable procurement
Cultural and transportation protection
Network resilience
Management of pedestrian and vehicular traffic
Topic 3: Railway
Track engineering
Roadbed engineering
Bridge engineering
Tunnel engineering
Station engineering
mechanical engineering
Signal Engineering
Locomotive Engineering
Vehicle Engineering
Railway track
Railway survey and design
Railway construction
Railway maintenance
Railway reconstruction
Excavation project
Filling project
Compaction Engineering
Roadbed earthwork engineering
Pile foundation engineering
Pile cap engineering
Pier and abutment engineering
Unit project
Branch project
Sub item project
civil engineering
mechanical engineering
Signal Engineering
Railway lines
station
signalling system
Power system
communication system 
Construction of high-speed railway engineering
Electric traction
diesel traction 
Steam traction
High speed rail crew
Railway Engineering Technology
Railway communication signal
Railway transportation operation management
Railway locomotives and rolling stock
Construction Engineering Technology
Railway power supply
Railway signal
Railway communication