Time geography or time-space geography traces its roots back to the Swedish geographer Torsten Hägerstrand who stressed the temporal factor in spatial human activities. The time-space path, devised by Hägerstrand, shows the movement of an individual in the spatial-temporal environment with the constraints placed on the individual by these two factors. Three categories of constraints were identified by Hägerstrand:
Time geography is that branch of human science which deals with the study of temporal factor on spatial human activities with constraints like authority, capability and coupling.
- Authority - limits of accessibility to some places or domains placed on individuals by owners or authorities
- Capability - limitations on the movement of individuals, based on their nature. For example, movement is restricted by biological factors, such as the need for food, drink, and sleep
- Coupling - restraint of an individual, anchoring him or her to a location while interacting with other individuals to complete a task
The methods associated with time geography have been criticized by a number of postmodern and feminist geographers.
- ^ Hägerstrand, Torsten (1953). Innovationsförloppet ur korologisk synpunkt, C.W.K Gleerup, Lund, Sweden. Translated as Innovation Diffusion As a Spatial Process, Chicago, University of Chicago Press, 1967
- ^ Rose, Gillian (1993) Feminism and Geography: The Limits of Geographical Knowledge Univ. of Minnesota Press