If at a given time of the day, the state road 408 is higly congested, then it could be considered to possess the properties of a COMMON PROPERTY GOOD.
There are four types of economic goods, these are: public goods, private goods, common property goods and club good.
Common properties goods are those goods which are characterised by rival consumption and non exclusion of non payers. Rival consumption implies that consumption by a user imposes limitations on what others can consume, but a user can not stop another user from enjoying the good. Common property goods are equally owned by everyone and are not controlled by anyone in particular, thus these goods usually need government intervention.
