I also found this on page 16-6, by ctrl+f'ing 'score', 5th result: This subsection describes the LOS criteria for the motorized vehicle, pedestrian, bicycle, and transit modes. The criteria for the motorized vehicle mode are different from the criteria used for the other modes. Specifically, the criteria for the motorized vehicle mode are based on performance measures that are field-measurable and perceivable by travelers. With one exception, the criteria for the pedestrian and bicyde modes are based on scores reported by travelers indicating their perception of service quality. The exception is the pedestrian space measure (used with the pedestrian mode), which is field measurable and perceivable by pedestrians. The criteria for the transit mode are based on measured changes in transit patronage due to changes in service quality.
Pedestrian question -> highway capacity manual
I also found this on page 16-6, by ctrl+f'ing 'score', 5th result:
This subsection describes the LOS criteria for the motorized vehicle,
pedestrian, bicycle, and transit modes. The criteria for the motorized vehicle
mode are different from the criteria used for the other modes. Specifically, the
criteria for the motorized vehicle mode are based on performance measures that
are field-measurable and perceivable by travelers. With one exception, the
criteria for the pedestrian and bicyde modes are based on scores reported by
travelers indicating their perception of service quality. The exception is the
pedestrian space measure (used with the pedestrian mode), which is field measurable and perceivable by pedestrians.
The criteria for the transit mode are based on measured changes in transit patronage due to changes in service quality.