Intensity measures the relatively asymmetry of a spatial network by calculating the rate of change of entropy relative to total depth. This is another way of normalising total depth. It also aims to capture the movement efficiency given the distance one must travel in the network.
Park, H., (2005) Before Integration: A Critical Reivew of Integration Measure in Space Syntax. In: Proceedings of 5th Space Syntax Symposium, 555-572. pp.564