Road transport is the primary means to transit goods and people from one place to another at the global level. But the slowdown of flow of vehicles, due to internal and external factors, especially of congestion, has severe impact on fuel usage, pollution from vehicular emissions, health of trespassers and considerable time from an individual's life. Being densely populated and one of the developing nations, South Asian countries have the urge to automate the process of predicting, detecting and resolving the road traffic congestion. This paper highlights the various traffic congestion detection methodologies followed till date, with pros and cons. Specific methodologies and tools adopted for lane less roads have been analysed with the scope for further development to help the future researchers. © 2019 SERSC.