analyze maps and roads examples 20110923

8/2/2019 Analyze Maps and Roads Examples 20110923

1/6

map hybrid

YES

aerial

Roads and housing are easy to recognize because the aerial image is focused, zoomed correctly and free from

cloud/tree cover.

NO

map hybridaerial

map hybridaerial

NO

NO

map hybridaerial

Roads and housing are NOT easy to recognize because the aerial image is not focused enough, iszoomed in/out too much or has cloud/tree cover.

Is the aerial image focused and

zoomed in/out just right to be able

to easily recognize roads and

housing?

(Roads in the area around the points

must be clearly identifiable and not

blocked by cloud cover or excessive

tree cover).


2/6

map hybridaerial

YES

A large portion of the points form and follow a clear path (e.g. appear along a real road or represent a real

road rather than a random scaered paern). (Its if not all the points follow a pathust as long as a

large portion of them do.)

YES

map aerial hybrid

A large portion of the points DO NOT form and follow a clear path (e.g. appear as a random, scattered

pattern).

hybridmap aerial

NO

This is NOT a path! (Its a random scattering of points.)

Do a large portion of the points

form and follow a clear path, rather

than a random scattered pattern?

(Its if not all the points follow a

path ust as long as a large portion

of them do in at least one location.)


3/6

YES

map aerial hybrid

There is a cluster of points located over a clearly recognizable parking lot in the hybrid image.

This IS a cluster of points over a parking lot!

NO

map aerial hybrid

There is a cluster of points but it is NOT located over a parking lot in the hybridimage.

This cluster is NOT located over a parking lot!

Is there a cluster of points

located over a clearly

recognizable parking lot in the

hybrid image?


4/6

aerialhybrid

The road in the aerial image and the path of points in the map image:

are located very nearto (if not completely on top of) each other

share the same shape as the path of points shown in the map image and hybrid image.

map

YES

NO

aerial hybrid

There is NO ROAD in the aerial image (even though the points correspond to the line of trees in the aerial image and hybrid image)!!

map

This is NOT A ROAD!

Is there a road in the aerial image

which is located very near to andshares the same shape as the path of

points shown in the map image and

hybrid image?


5/6

Does the road(s) in the map image

share the same shape andpositioning as the path of points?

YES

aerial hybridmap

The road(s) in the map image shares the same shape and positioning as the path of points in the

map image and the road in the aerial image.

The road(s) in the map image DOES NOT share the same shape and positioning as the path of points.

NO

aerialmap

The physical road that should share the same shape and positioning as the path of

points is MISSING! The map is what matters here. Its not enough that the path ofpoints shares the same shape/positioning as the road in the aerial image. )

hybrid

aerialmap hybrid

Though there is a road in the map there is none which shares the SAME SHAPE and

PSITINING as the path of points it is MISSING from the map!

?

map aerial hybrid

The physical road that should share the same shape and positioning as the path of

points is MISSING! The map is what matters here. Its not enough that the path of

points shares the same shape/positioning as the road in the aerial image. )

?NO

NO

aerial hybridmap

The path of points DOES NOT share the SAME POSITION (i.e. directly on top) asthe road.

NO

The path of points DOES share the SAME SHAPE and POSITIONING (i.e. directly

on top) as the road.

The road(s) in the map image DOES NOT share the same shape and positioning as the path of

points.


6/6

MISSING ROAD

The road(s) that matches the

path of points IS visible in the

aerialimage but IS MISSINGfrom the map.

INCORRECT MAPPING OF

ROAD

The road(s) in the map

DOES NOT share the sameshape and/or positioning

as the path of points.

map

aerial hybridmap

UPGRADE FROM A NON-

DIVIDED ROAD TO A

ROAD SEPARATED BY A

MEDIAN OR LARGE

DIVIDER

The path of points

represents a separated

divided lane or set of

lanes which indicates that

a non-divided road has

been upgraded to a road

separated by a median or

large divider.

The path of points indicates an upgrade to a road road separated

by a divider.

aerial hybrid

The path of points DOES NOT share the SAME POSITION

(i.e. directly on top) as the road.

aerial hybridmap

The road from the aerialimage is MISSING from the map!

aerialmap hybrid

There are two roads pictured in the aerial image. The problem is

the road on the right - the physical road is MISSING from the

map even though the path of points show that it should be

there!

?

aerial hybridmap

The physical road from the aerialimage is MISSING from the map!

?

When comparing the path of points to the map image and

aerial image which of these best describes what you see?

analyze maps and roads examples 20110923

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