01-02-2010 Centre for Geo InformationCentre for Geo-information

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Aldo Bergsma/John Stuiver

Light rail Application

Interactive user (re)design

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Spatial Application Building

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Spatial Application Componentsa) Spatial & Tabular data preparation (Pre-

processing).b) Automatic computation of the most desirable

light rail route and corridor.c) Interactive user (re)design of the Light Rail d) Fulfilling project criterion (reach light rail

within 5 to 10 minutes walk)e) Calculation of the approximate costs of the Light

Railf) Map presentation for stakeholders

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Light rail route and corridor.

Light Rail Route Light Rail Corridor

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Component c: Interactive user (re)design

• Automatic generated path and corridor• Based on land use as main criteria for

suitability factors.• User determined criteria (political, usability,

etc.)

• Included in (re)design

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User (re)design

70% of the population must live in a walking distance of 5-10 minutes

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Examples of where user decisions must be made

Wageningen

Bennekom

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Handy Background Layers during (re)design Route

• Weight factors determining the corridor • Light Rail Corridor: degrees of freedom

more in non-buildup areas• Computed Light Rail Route

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(Re)Design Route

• Data exploration in ArcCatalog• Data viewing ArcCatalog (single datasets) /

ArcMap (Multiple datasets)

• Editing– ArcCatalog (Creation of new empty

datasets)– ArcMap (Filling datasets by digitizing)

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Digitizing1. Create new datasets in ArcCatalog

• Adding a map coordinate system and user-defined attributes to a geo-dataset

2. Preparing the digitising environment in ArcMap

3. Adding data to a spatial dataset in ArcMap (Digitizing)

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Map coordinate systems

• Principle in ArcGIS– Each dataset must have a coordinate

system defined

• Dutch National grid– “Rijksdriehoekstelsel New”

• Reference data for digitizing (background layers)

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Presentation reference dataDatasets concerning

• Weight factors• Light Rail Corridor• Light Rail Route• Infrastructure• Etc.

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Task Settings

• Tasks– Create new features– Modify features

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Target Settings

• Select the Edit layer

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Snap Settings

• Snap to reference layers