2. On the "Payment" page, click "City Service" to enter the "City Service" page.
3. On the "City Service" page, drop down and find "Congestion Query" in the "Traffic Travel" category.
4. After entering the "congestion query", there will generally be a local highway traffic query. Taking Chongqing as an example, we input "Chongqing Expressway Information Inquiry".
5. On the "Chongqing Expressway Information Inquiry" page, click "Expressway Real-time Road Condition Inquiry".
6. You can select the expressway traffic information you want to query by map or list.