Implement co-accessibility as an accessibility segregation measure

[rafapereirabr]

Implement the co-accessibility measure which was introduced by from Milias et al (2024). According to the authors, co-accessibility is a measure of potential place-based encounters. It could be very useful to think about segregation of social groups from an accessibility perspective, as it allows one to calculate "the extent to which a destination is mutually accessible to individuals from various demographic groups (e.g., age, ethnicity, income)".

• Milias, V., Psyllidis, A., & Bozzon, A. (2024). Bridging or separating? Co-accessibility as a measure of potential place-based encounters. Journal of Transport Geography, 121, 104027.

[rafapereirabr]

Another related measure it the joint accessibility , proposed by Neutens et al (2008).

• Neutens, T., Schwanen, T., Witlox, F., & De Maeyer, P. (2008). My space or your space? Towards a measure of joint accessibility. Computers, Environment and Urban Systems, 32(5), 331-342.