*3.2.2.4 Accessible route*

An "accessible route" means a course on which disabled people and the elderly can move around easily. As demonstrated in **Figure 4**, the accessible route should be connected to a bedroom for the disabled or elderly, a toilet and bath area, an area for working and learning, a living/dining room, a kitchen, an entrance, and the street. Moreover, if there is parking in the housing site, it should also be linked with the accessible route. The surface of the passages on the route must be flat or gently sloping. Similarly, the doorways on the route should have no level differences. Moreover, the passages and doorways on the accessible route must be wide enough for a wheelchair to pass.

#### *3.2.2.5 Green space*

A "green space" is an area with plants, such as trees, shrubs, herbs, and grasses. Increasing green spaces contributes to environmental preservation, health, and safety in various ways. First, it mitigates global warming and climate change, enhancing the sinks of CO2. Moreover, increasing green spaces also mitigate both urban heat island and urban flooding risks. As implied in **Figure 4**, extending green spaces in the outside area of the housing site leads to reducing impervious surface spaces, typically areas covered with concrete and asphalt. These two factors reduce urban heat island effects through increasing evapotranspiration and decreasing heat absorption. Meanwhile, the increase of pervious surface spaces can decrease urban flooding risks by reducing rainwater runoff.
