Copyright © National Academy of Sciences. All rights reserved.
This executive summary plus thousands more available at http://www.nap.edu
Assessing and Managing the Ecological Impacts of Paved Roads
http://books.nap.edu/catalog/11535.html
Contents
xxv
APPENDIXES
A Biographical Information on Committee Members............. 249
B
Spatial Scale of Road Effects on Ecological Conditions:
Annotated Bibliography ...................................................... 255
C Congressional Declaration of National Environmental Policy,
National Environmental Policy Act of 1969 ....................... 293
FIGURES
1-1 Photograph of double yellow line in the center of a road, 27
1-2 A larger segment of the road as seen in Figure 1-1, 28
1-3 A larger (longer segment) of road on Emory campus, 29
1-4 At this scale of photograph, most of the buildings that make up
the central campus of Emory University can be seen embedded
in a network of roads, 30
1-5 At an extent of 10 km × 10 km, the road patterns around
Emory campus are evident, yet individual roads are scarcely
visible, 31
1-6 At an extent of 100 km × 100 km , the urban imprint of Atlanta
is visible, 32
1-7 At an extent of 1,000 km × 1,000 km, geological features
dominate, 33
1-8 At an extent of approximately 10,000 km × 10,000 km, clouds
and atmospheric structures appear as well as the entire
continent of North America, 34
1-9 Ecological hierarchy indicated by the spatial and temporal
scales of vegetation structures (needles, patches, and forests),
disturbance processes (fire), and atmospheric structures
(fronts), 35
2-1 Time course of number of vehicle miles traveled by year from
1960 to 2000, indicating travel on rural and urban portions of
the highway system, 41
2-2 Map of National Highway System in the 50 states, the District
of Columbia, and Puerto Rico, 46
2-3 Miles of road and use of roads in urban and rural portions of
the National Highway System, 47
2-4 Total road mileage (summation of all road lengths) and travel
by functional type in the year 2000, 48
This executive summary plus thousands more available at http://www.nap.edu
Assessing and Managing the Ecological Impacts of Paved Roads
http://books.nap.edu/catalog/11535.html
Contents
xxv
APPENDIXES
A Biographical Information on Committee Members............. 249
B
Spatial Scale of Road Effects on Ecological Conditions:
Annotated Bibliography ...................................................... 255
C Congressional Declaration of National Environmental Policy,
National Environmental Policy Act of 1969 ....................... 293
FIGURES
1-1 Photograph of double yellow line in the center of a road, 27
1-2 A larger segment of the road as seen in Figure 1-1, 28
1-3 A larger (longer segment) of road on Emory campus, 29
1-4 At this scale of photograph, most of the buildings that make up
the central campus of Emory University can be seen embedded
in a network of roads, 30
1-5 At an extent of 10 km × 10 km, the road patterns around
Emory campus are evident, yet individual roads are scarcely
visible, 31
1-6 At an extent of 100 km × 100 km , the urban imprint of Atlanta
is visible, 32
1-7 At an extent of 1,000 km × 1,000 km, geological features
dominate, 33
1-8 At an extent of approximately 10,000 km × 10,000 km, clouds
and atmospheric structures appear as well as the entire
continent of North America, 34
1-9 Ecological hierarchy indicated by the spatial and temporal
scales of vegetation structures (needles, patches, and forests),
disturbance processes (fire), and atmospheric structures
(fronts), 35
2-1 Time course of number of vehicle miles traveled by year from
1960 to 2000, indicating travel on rural and urban portions of
the highway system, 41
2-2 Map of National Highway System in the 50 states, the District
of Columbia, and Puerto Rico, 46
2-3 Miles of road and use of roads in urban and rural portions of
the National Highway System, 47
2-4 Total road mileage (summation of all road lengths) and travel
by functional type in the year 2000, 48