Totem Lake Redevelopment Analysis & Visualization

Project TeamRacheal Jones3D and Visualization AnalystGIS Analyst

Michael Horner3D and Visualization AnalystGIS Analyst

Suzanne PalmasonProject ManagerGIS Analyst

Korosh DabestaniGIS Analyst

SponsorCity of KirklandXiaoning JiangGIS AdministratorEric ShieldsDirector of Planning and Community DevelopmentDorian CollinsProject Planner

The Original Idea 3-D Model Visualization For Totem Lake Commercial District

Thumbnail sketches3-D views of various development options Viewsheds, streetscapes, transportation connections, environmental mitigation, etc.

Totem Lake Mall

Totem Lake Mall

Totem SquareFOR SALE

Proposed Road from Slater to 120th (crossing 124th)Totem Lake MallTotem Square Shopping Center

Problem Statement EvolutionThe Project Plan Problem Statement:Identify areas likely to redevelop

Assess the current zoning codes capacity to absorb targeted growth.

Communicate potential development scenarios to stakeholders.

The Original Proposal Description:3-D Visualization

What they really wanted to know: How does the redevelopment capacity change if we adjust the assumptions about the improvement to land value ratio used as a predictor of redevelopment?

What can you do with 3-D tools to help visualize a proposed road and potential redevelopment in the Totem Square area?

Phase 1: Redevelopment Capacity Analysis

The Ratio:Two houses in the same neighborhood, with same lot size. Property is in a zone that allows four dwelling units on a lot this size. Which one is more likely to be redeveloped?

Sheet1

ScenarioRatio_GrpFREQUENCYSUM_Res_CaSUM_Jobs_CSUM_CommSF

1

MethodologyJoin Parcels layer with Assessor data tables Identify redevelopable parcels based on criteria provided by City of Kirkland:Exclude parks and government institutionsExclude condominiumsParcels completely within wetland & stream 50 foot bufferFor parcels that intersect wetland buffer: calculate % of parcel within buffer

Dissolve contiguous parcels with common ownership

Model #2Use zone-specific assumptions to calculate redevelopment capacity

Totem Lake Redevelopment Capacity Analysis Results

If all parcels identified as redevelopable are developed to their maximum capacity, whats the capacity for dwelling units and jobs? How does the capacity change if we increase the improvement value to land value ratio used to select redevelopable parcels?

Totem Lake Redevelopment Capacity Analysis ResultsZone TL5 Scenario VariationsThese charts demonstrate the impact of changing assumptions for Office and Residential FAR within the TL 5 zone. Office and Residential FAR values for all other zones remain consistent in each scenario.

Sheet1

ScenarioRatio_GrpFREQUENCYSUM_Res_CaSUM_Jobs_CSUM_CommSF

1

Model Builder Pros & ConsAdvantages: Visual record of logicEasy for team to review steps and provide feedbackEasy to change capacity assumptions & run what if scenarios Ability to delete intermediate data (save storage space)ChallengesMultiple steps to join tablesSelect by location requires feature layer input (no shapefiles)

Risks and ChallengesEach review with sponsors uncovered new guidelines for parcels to exclude and forecasting assumptionsNumber crunching using GIS Planning terminology

Phase 2: 3-D Visualization

MethodologyThe City of Kirkland asked us to model a potential redevelopment scenario in 3D using ArcScene and Google Sketchup.

Kirkland has design guidelines for future Totem Lake redevelopment.

We used these guidelines to model a redevelopment scenario in District TL 6A (map).

These guidelines call for: Commercial uses Multi-family housing The extension of NE 120th Street

Methodology

Two Main Approaches

When using ArcGIS and Google Sketchup to create scenes there are two basic processes:

ArcGIS to SketchupSketchup to ArcGIS

ArcGIS to Sketchup To export feature classes, TINs or rasters from ArcGIS to sketchup you need the ArcGIS (beta) plugin. This tool appears after being activated.Only works in ArcGIS 9.2

ArcGIS to Sketchup

ArcGIS to Sketchup

ArcGIS to Sketchup

ArcGIS to Sketchup

Model Examples

Sketchup to GISHow do you bring a sketchup model back into GIS?

Export model as an Autodesk .3ds, 3D modeling file (requires professional version of Sketchup)

Sketchup to GISImport .3ds file as an ArcGIS Style (Tools/Style Manager/Style Manager)

Sketchup to GIS Create new Marker Symbol

Sketchup to GIS

Assign Marker Symbol as a point symbol

Note: You will need to convert polygons to points using ArcToolbox (requires ArcInfo)

Sketchup to GISIf you need to change an attribute of your symbol after seeing it in the scene, you can do that in Style Manager.

Getting your Marker Symbol sized and aligned correctly will likely require a series of adjustments.

Risks and ChallengesSchedule (not enough time to complete the phase)Access to resources Knowledge about the process (best practices, challenges, whats doable)SoftwareOnly have access to ArcInfo in UW labDont have access to SketchUp Pro (downloaded trial multiple times)

Risks and ChallengesTechnological IssuesArcGIS 9.3 not supported by the Sketchup 'Export to ESRI multipatch' and is not seamless in 9.2.ArcScene is buggy. Textures would not stay on polygons and lines. The 3D library objects, after adding a new menu, would disappear and come back randomly. Error messages and crashes occur constantly.File corruption due to stability problems. Takes a lot of power to run a 3D model smoothlyHard to make models align with boundaries in the sceneDifficult to navigate around and get good shots.

Risks and ChallengesLimited functionality in ArcScene Does not allow for detailingMust create your own data to assign character to a scene (unless it is imported from SketchUp) THIS TAKES FOREVER!

Lessons LearnedLook for work tracks that can happen in parallel. (Requires a good understanding of dependencies!) For 3-D visualization, access to the full software packages are important.Its challenging to build a plan for something youve never done before. Get input, and keep revising as you go. Ask sponsors for background info & reference materials.Creating a 3D scene takes time! Details are important for a good show.

HighlightsLearned some new functions:create random pointsfeature to pointconvert 2D data to 3D datacreate 3D dataAssigning textures and importing 3D objects Geoprocessing with Model BuilderData conversionProvided City of Kirkland with reusable models for capacity analysis

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