The Behavioural Approach emerged in human geography as a significant critique of the quantitative revolution and positivism, which often overlooked the human element in spatial analysis. Its core significance lies in shifting the focus from purely objective spatial patterns to understanding the subjective perceptions, cognitions, and decision-making processes of individuals that shape these patterns. This approach posits that human actions are not merely rational responses to objective environmental stimuli but are mediated by how individuals perceive and interpret their surroundings.

Key contributions include the development of mental maps, which illustrate how people perceive and organize space, and studies on environmental perception, risk assessment, and consumer behaviour. It helped explain why people make seemingly 'irrational' spatial choices, such as residential location or travel patterns, by considering factors like personal preferences, cultural values, and psychological biases. The behavioural approach enriched human geography by providing a more nuanced understanding of human-environment interactions, emphasizing the role of individual agency and subjective experience.

However, it also faced criticism for its methodological challenges, such as the difficulty in generalizing findings from individual-level studies to broader populations, and the complexity of measuring subjective experiences. Despite these limitations, the behavioural approach laid crucial groundwork for subsequent developments in human geography, including humanistic geography and the integration of qualitative methods, by re-emphasizing the importance of human perception and behaviour in shaping geographical landscapes.