Earth & Environmental Sciences
cultural landscape
95%
transportation system
94%
national park
70%
travel
47%
cultural geography
44%
environmental values
33%
congestion
30%
qualitative analysis
29%
freedom
26%
automobile
23%
education
22%
road
18%
services
16%
history
14%
cost
13%
analysis
6%
Social Sciences
transportation system
100%
cultural landscape
97%
national park
91%
travel
27%
solitude
21%
cultural geography
19%
educational opportunity
16%
road
13%
experience
9%
narrative
9%
interpretation
9%
costs
8%
history
8%
interview
6%
education
4%
Business & Economics
National Parks
95%
National Park Visitor
35%
Situational Influence
29%
Interpretive Research
28%
Visitor Experience
28%
Environmental Values
24%
Cultural Geography
24%
Qualitative Analysis
23%
Education
23%
Individual Characteristics
20%
Congestion
19%
Roads
16%
Car
16%
Costs
7%
Factors
6%