  People spend approximately 90% of their lives indoors, and thus arguably, the
indoor space design can significantly influence occupant well-being. Adequate
views to the outside are one of the most cited indoor qualities related to
occupant well-being. However, due to urbanization and densification trends,
designers may have difficulties in providing vistas and views to the outside
with an assortment of content, which can support the needs of their occupants.
To better understand occupant view satisfaction and provide reliable design
feedback to architects, existing view satisfaction data must be expanded to
capture a wider variety of view scenarios and occupants. Most related research
remains challenging in architectural practice due to a lack of easy-to-use
early-design analysis tools. However, early assessment of view can be
advantageous as design decisions in early design, such as building orientation,
plan layout, and facade design, can improve the view quality. This paper,
hence, presents results from a 181 participant view satisfaction survey with
590 window views. The survey data is used to train a tree-regression model to
predict view satisfaction. The prediction performance was compared to an
existing view assessment framework through case studies. The result showed that
the new prediction is more accurate to the surveyed result than the framework.
Further, the prediction performance was generally high for most responses,
verifying the reliability. To facilitate view analysis in early design, this
paper describes integrating the satisfaction prediction model and a ray-casting
tool to compute view parameters in the CAD environment.
