(Overview) (Method) (Survey) (Mt. Airy) (Michigan) (Exeter) (Syllabus)

University of Michigan Law Library

(Michigan Intro) (Michigan Model Study) (Michigan Survey) (Michigan Student Evaluation)

Scale Model Study

Model testing suggested the library would suffer from visual and lighting problems - essentially, that sunlighting would be too bright under the skylight and that this would create an unacceptable contrast ratio between skylit and electrically lit areas. Findings of the field visit to Michigan Law Library were surprising in that these expected problems were not evidenced either by on-site evaluation or by user responses.

June - 9 am
sky: 6000 fc
interior: 400 fc
daylight factor: 07%

June -12 noon
sky: 8000 fc
interior: 1000+ [1]
daylight factor: 15%

June - 3 pm
sky: 6000 fc
interior: 400 fc
daylight factor: 07%

Sep/Mar - 9 am
sky: 4000 fc
interior: 400 fc
daylight factor: 11%

Sep/Mar -12 noon
sky: 6000 fc
interior: 300
daylight factor: 05%

Sep/Mar - 3 pm
sky: 3800 fc
interior: 400 fc
daylight factor: 11%

Dec - 9 am
sky: 2000 fc
interior: 240 fc
daylight factor: 12%

Dec -12 noon
sky: 3000 fc
interior: 160
daylight factor: 05%

Dec - 3 pm
sky: 2000 fc
interior: 200 fc
daylight factor: 10%

Notes:

[1] reading is in direct sun

The next section presents the results of the occupant survey taken at the University of Michigan Law Library.

Comments to author: vitalsigns@
ced.berkeley.edu

All contents copyright (C) 1998. Vital Signs Project. All rights reserved.

Created: 05/13/97
Revised: 09/09/02

http://www-archfp.ced.berkeley.edu/vitalsigns/workup/rpi/watson_michmod.html