In the recent Satellite images released by Google, one can easily spot the exit and entry ramps of the Cloverleaf Interchange. The interchange is coming up at the intersection of Hubballi Semi Ring Road and NH-48 (erstwhile NH-4).
A Cloverleaf Interchange is typically built where two major highways intersect each other. The objective of the interchange is to allow two highways to criss-cross without stopping any traffic.
With the Cloverleaf, vehicles transition Left by turning Right on the circular loop under an overpass and vice versa. The traffic moving straight will proceed either under or over the bridge.
The relative cost of the project is less as it involves the construction of only one bridge. To ease the traffic congestion, the Interchange has been planned.