In　recent　years,　the　rapid　development　of　the　economy　and　the　rapid　increase　in　the　number　of　social　cars　have　had　a　direct　impact　on　the　efficiency　of　the　road　network,　resulting　in　varying　degrees　of　regional　traffic　congestion,　particularly　during　the　morning　and　evening　rush　hours.　The　real-time　data　of　the　network　is　employed　to　identify　the　congestion　points　at　the　intersection,　analyse　the　causes　of　congestion,　and　select　the　intersection　of　Baodi　Ring　Road　and　Tangtong　Line　as　a　case　study　to　alleviate　congestion　and　optimise　the　objective　of　improving　road　capacity.　The　accurate　quantification　of　real-time　traffic　condition　data,　the　reduction　of　research　costs,　the　formation　of　a　system　for　the　transformation　and　optimisation　of　intersections,　and　the　provision　of　a　reference　for　the　optimisation　of　domestic　ordinary　trunk　highway　intersections　are　all　benefits　of　this　approach.　©　2024　SPIE.