JEN Design Principles for Human Behavior Flashcards
Typical Human Comfort Zone Winter = Summer = Tolerable humidity = Uncomfortable humidity =
Winter = 63°F - 71°F
Summer = 66°F - 75°F
Tolerable humidity = 30% - 60%
Uncomfortable humidity = + 75%
What is the Ahwahnee principle?
A collective vision of how urban and suburban planning should
follow certain fundamental principles regarding community size, integration,
transportation, open space, pedestrian paths, native vegetation, water and energy use.
Principles of Wind, Basic Speed = Unnoticeable = Pleasant = Pleasant *and* noticeable = Drafty = Uncomfortable =
Basic Speed = 70 - 80 miles/hour Unnoticeable = < 50 feet/minute Pleasant = 50 - 100 feet/minute Pleasant *and* noticeable = 100 - 200 feet/minute Drafty = 200 - 300 feet/minute Uncomfortable = + 300 feet/minute
When designing for wind if velocity doubles pressure ________?
(If velocity doubles, pressure quadruples) Pressure varies as the square of the velocity
Principles of Pedestrian Circulation, Area of a person = Easy movement = Crowd movement = No movement = Sidewalks = Collector walks =
Area of a person = 3 sf Easy movement = 13 sf Crowd movement =! 7 sf No movement = 3 sf Sidewalks = 5’-0” wide min Collector walks = 6-0” - 10’-0” wide min
What is the smallest difference in 2 sounds the human ear can detect?
1 decibel
Principles of sound, Sleeping, studying, whispering = Conversation, comfort = Safety Threshold = Rock Band =
Sleeping, studying, whispering = 30 decibels
Conversation, comfort = 50 - 60 decibels
Safety Threshold = 85 decibels
Rock Band = 90 - 100 decibels
An increase in 10 decibels is perceived by the human ear as _________ times louder?
An increase in 10 decibels is perceived by the human ear as ten times louder?