ROS Step by Step Getting Started

ROS Step by Step Getting Started ROS Step by Step Getting Started - Start

Added : 2018-03-15 Views :38K

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ROS Step by Step Getting Started




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Presentations text content in ROS Step by Step Getting Started

Slide1

ROS

Step by Step

Slide2

Getting Started

ROS determination is based on the transportation system and topography (specifically, slope)

Slide3

Step 1

Classify routes as improved, primitive or non-motorized.

Better than Primitive Routes

Primitive Motorized Routes

Non-motorized Routes

Slide4

Step 1

To reduce computational time, clip routes to those within 3 miles of project area.

Slide5

Step 2

Prepare a slope raster (percent) and 2 route

rasters

- improved roads and, all motorized routes.

Slide6

Step 2 (continued)

Prepare a cost raster for travel from primitive motorized routes

(slope / 3).

Slide7

Step 2 (continued)

Prepare a second cost raster for travel from improved routes.

(slope / 3)

Slide8

Step 3

Compute

costdistance

raster for improved roads.

Slide9

Step 3 (cont)

Compute a second

costdistance

raster for all motorized routes.

Slide10

Step 4

Reclassify the

costdistance

raster for improved roads into preliminary zones.

Slide11

Step 4 (cont)

Reclassify the

costdistance

raster for all motorized routes into preliminary zones.

Slide12

Step 4 (cont)

Combine the reclassified maps.

Areas of difference define SPM and compromised SPNM.

Slide13

Step 5

Using all motorized routes, determine route density using focal function.

Slide14

Step 5 (cont)

Reclassify the route density into Rural, Urban and Other classes.

rural

urban

Slide15

Step 6

Combine the density classes with the cost mapping.

Assign draft ROS classes.

Slide16

Step 7

Develop combined PR / SPNM polygons.

PR and SPNM can be undersized when there are adjoining areas.

Slide17

Step 7 (cont)

Develop combined SPM / SPNM polygons.

SPM can be undersized when there are adjoining SPNM areas.

Slide18

Step 7 (cont)

Add the expanded area values to the draft ROS zones.

Slide19

Step 8

Make final designations based on sizes and adjacent areas.

Slide20

Classify U & R.

Classify RN.

Classify SPM > 2500

Classify SPM < 2500

Reclassify SPM < 400 as RN

Slide21

Classify SPNM > 2500

Classify SPNM < 2500

Reclassify SPNM < 2500 to SPM

Reclassify SPNM < 2500 to RN

Reclassify SPNM < 400 to RN

Slide22

Classify PR > 5000

Classify PR < 5000 adjacent to SPNM

Reclassify PR < 1000 adjacent to SPNM to SPNM

Reclassify PR < 1000 not adjacent to SPNM to RN

Slide23

Step 9

Dissolve on ROS value

Clip to Boundary

Review Results

Slide24

Step-by-Step


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