www.cswbroadband.org.uk

Using QGIS in the BDUK Superfast Broadband Roll-out

Chris Page20th September 2013

www.cswbroadband.org.uk

Overview

• Background– Project Overview, Broadband over Copper – a distance problem, FTTP (£143m)

or FTTC (£15m) Two solutions

• Delivering maps to users on slow broadband– CSW Broadband Maps– Using Seadragon with QGIS

www.cswbroadband.org.uk

BACKGROUNDBroadband Delivery UK – Coventry, Solihull and Warwickshire Project

www.cswbroadband.org.uk

Project Aims

• Superfast Broadband for 90% of premises; and • Basic Broadband for all other premises• Benefit the maximum number of citizens • Remove the barrier of connectivity for businesses to

do business in the sub-region • Ensure a network deployment that contributes the

most to the underlying fibre infrastructure across the sub-region

www.cswbroadband.org.uk

Additional Requirements

• A mechanism that ensures that project outcomes reflect the relative funding contributions of the Local Body Beneficiaries so that local outcomes reflect the amounts contributed

• Areas that have a concentration of business subscribers – minimum line speed of 100 Mbps

www.cswbroadband.org.uk

Timeline

• 3rd March 2012 – Local Broadband Plan approved• 26th October – Open Market Review completed• 20th January 2013 – Public Consultation completed • 28th January 2013 – ITT Issued• 9th April – responses received• 10th - 24th April – responses evaluated• May 2013 – Contract with BT, negotiations & signature• 6th June – Project launch• March 2014 – target date for first connections

• “As a result of our pre-procurement discussions with the broadband providers we have received updated Open Market Review data that shows an extra 44,690 properties now being brought into the commercial roll-out, meaning that the money within the CSW Broadband project will go that much further.”

• “Thanks to the information provided by our local communities through their Local Broadband Champions and the surveys on our website, our team has been in discussions with BT about areas that have been omitted from their commercial roll-out plans.”

• “At both Warwick Gates and Coton Park we were able to show that there were sufficient potential subscribers for superfast broadband services to make a clear business case for BT to invest in these areas.”

• “Through the data that we have collected over the past couple of years we have good knowledge of our area and so were able to apply to BDUK for additional funding. This means that with match funding an additional £750,000 has been brought to the project, which has yet to be allocated to the rollout programme.”

Impact of Analysis and Mapping

www.cswbroadband.org.uk

From Open Market Review data:• White - no broadband

infrastructure exists or is unlikely to be developed in the near term – intervention areas

• Grey - only one broadband network operator is present

• Black - at least two or more broadband network providers are present

www.cswbroadband.org.uk

From BAFO on September 2013:• White – between 2

Mbps and 23 Mbps• Amber – between 24

Mbps and 80 Mbps (~5% will not achieve this)

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Delivering over Copper, a problem of distance

Loop Length is measured in kilo feet

www.cswbroadband.org.uk

DELIVERING MAPS TO USERS OF SLOW BROADBAND

www.cswbroadband.org.uk

Setting User’s Expectations

• FTTP and FTTC design done by SPATIALinfo• QGIS used to map AddressBase Premium

data, coloured to show distance, hence speed• This allowed us to answer questions and

analyse our region to aid procurement• Like to provide access by the public• Budget £0, time allocated 2 person days

www.cswbroadband.org.uk

What did we get? How did we do it?

• 2,915,803,968 pixel map but fast download• Demo: www.cswbroadband.org.uk/seadragon6.php

• Deep Zoom (Seadragon) selected• QGIS to produce map tiles• Deep Zoom Composer (version 1.0.1945.1)

www.microsoft.com/en-GB/download/details.aspx?id=24819

– Since found OpenSeadragonopenseadragon.github.io/

• Tableau for analysis and interactive layerhttp://public.tableausoftware.com/views/CrowdsourcedBTCabinets/MapofCabinets?:embed=y&:display_count=no

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Deep Zoom Composer

• Import map tiles• Compose, tiles snap together• Overlay region maps• Set visability of each map tile• Export using Ajax

www.cswbroadband.org.uk

Deep Zoom Composer

• Remember to set visibility:Max/Min zoom to see layer

– Set Tiles Min – Set Region Min and Max– Set Miniscale Max

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Print Composer v1.8 (ComposerMap)

• <Composer title="DZC5" visible="0">• <ComposerMapkeepLayerSet="false" id="0" previewMode="Cache" drawCanvasItems="true">

– <Extent • ymin="265000" • xmin="432000" • ymax="277000" • xmax="440000" />

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Print Composer v1.8 (ComposerItem)

• <ComposerItem width="400" x="0" y="0" rotation="0" height="600"

– frame="false" outlineWidth="0.3" zValue="1" – lastValidViewScaleFactor="0.870216" – id="" positionLock="true">– <FrameColor alpha="255" red="0" blue="0" green="0"/>– <BackgroundColor alpha="255" red="255" blue="255"

green="255"/>• </ComposerItem>• </ComposerMap>

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Print Composer v1.8 (Composition)

• <Composition • printResolution="300" • paperWidth="400" • snapGridOffsetX="0" snapGridResolution="0"

snapGridOffsetY="0" snapping="0"• paperHeight="600" • printAsRaster="0“ />

• OS units of tile Width=8,000 Height=12,000

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Grid to find x,y313,000 DZC5, for example, is specified as:

yMax = 277000yMin = 265000

xMin = 432000xMax = 440000

301,000 DZ01 DZ02 DZ03 DZ04 DZ05 DZ06 DZ07 DZ08

289,000 DZA1 DZA2 DZA3 DZA4 DZA5 DZA6 DZA7 DZA8

277,000 DZB1 DZB2 DZB3 DZB4 DZB5 DZB6 DZB7 DZB8

265,000 DZC1 DZC2 DZC3 DZC4 DZC5 DZC6 DZC7 DZC8

253,000 DZD1 DZD2 DZD3 DZD4 DZD5 DZD6 DZD7 DZD8

241,000 DZE1 DZE2 DZE3 DZE4 DZE5 DZE6 DZE7 DZE8

229,000 DZF1 DZF2 DZF3 DZF4 DZF5 DZF6 DZF7 DZF8

217,000 DZG1 DZG2 DZG3 DZG4 DZG5 DZG6 DZG7 DZG8

400,000 408,000 416,000 424,000 432,000 440,000 448,000 456,000 464,000

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Overview Maps

• <Extent ymin="217000" xmin="400000" ymax="313000" xmax="464000"/>

• printResolution changed to select between maps– 200 Region Overview– 100 Miniscale Region Overview

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Use existing Tiles

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OpenStreetMap

• <script type="text/javascript">• OpenSeadragon({• id: "example-inline-configuration-for-osm",• prefixUrl: "/openseadragon/images/",• showNavigator: false,• wrapHorizontal: true,• zoomPerScroll: 1.2,• minZoomImageRatio: 0.5,• tileSources: [{• type: 'openstreetmaps'• }]• });• </script>

• http://openseadragon.github.io/examples/tilesource-osm/

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Tile Map Services

• <script type="text/javascript">• OpenSeadragon({• id: "example-inline-configuration-for-tms",• prefixUrl: "/openseadragon/images/",• showNavigator: false,• wrapHorizontal: true,• zoomPerScroll: 1.2,• minZoomImageRatio: 0.5,• tileSources: [{• type: 'tiledmapservice',• tilesUrl: 'http://tilecache.osgeo.org/wms-c/tilecache.py/1.0.0/basic/',• width: 256 * 65534,• height: 256 * 32767• }]• });• </script>

• http://openseadragon.github.io/examples/tilesource-tms/

www.cswbroadband.org.uk

Custom Tile Sources

• <script>• OpenSeadragon({• id: "example-custom-tilesource",• prefixUrl: "/openseadragon/images/",• navigatorSizeRatio: 0.25,• wrapHorizontal: true,• tileSources: {• height: 512*256,• width: 512*256,• tileSize: 256,• minLevel: 8,• getTileUrl: function( level, x, y ){• return "http://s3.amazonaws.com/com.modestmaps.bluemarble/"+(level-8)+"-r"+y+"-c"+x+".jpg";• }• }• });• </script>

• http://openseadragon.github.io/examples/tilesource-custom/

www.cswbroadband.org.uk

Questions?

Thank You