 Strategies
Denver Smart Places Decision Support System
INTRODUCTION
This document describes the Smart Places Decision Support System. Smart
Places was developed in conjunction with a partnership of public and private
investors formed to advance sustainable development planning. The Smart
Places partnership included the City and County of Denver, Stapleton Redevelopment
Foundation, Public Service Company of Colorado, Governors Office of Energy
Conservation, Environmental Protection Agency (Region VIII), Urban Consortium
Energy Task Force, and Electric Power Research Institute. The software
called Smart Places developed as a result of the Smart Places Project provides
customized community planning and sustainable indicator evaluation.
SYSTEM OVERVIEW
Smart Places makes possible interactive urban design and infrastructure
specification using a hands-on "What-If" approach. For example, a community
designer may ask the question "What if I place a block of single-family
homes with a centrally located recreation facility?" Smart Places allows
the designer to sketch in the design using familiar landmarks, aerial photos,
and other features as references. The designer specifies key attributes
of the new community components (i.e.: average floor space, heating technology,
etc.) The designer might then ask "What would the energy requirements be
for this community?" or "What are the emissions implications for this particular
design?" The Smart Places system allows the user to select evaluation criteria
from a number of features and indicators. The system provides immediate
answers to questions relating to transportation, energy, emissions, wastewater,
water requirements, etc. The designer might then ask "What if I modify
this design to ..." and the sequence repeats itself, allowing the user
to iterate between design experimentation and "What-if" evaluation.
The system will support a wide range of user experience and expertise,
from a computer novice to a software development expert. The user can select
or change the user interface "expertise level" at any time.
Smart Places used the community redevelopment efforts relating to the
Stapleton Airport site as a pilot for the system . However, the system
easily accommodates any site at any scale for sustainable community planning.
SYSTEM AVAILABILITY
The Smart Places Decision Support system will be available for community
design projects in 1997.
DESIGN PHILOSOPHY
Smart Places is a user approachable, sustainable development process
in software. The system is open; this means that it can be viewed, modified
and applied to suit individual needs. It uses programs, language and methods
which make it both powerful and robust. The creators of the system are
many, all of whom share the idea that future generations of the system
can be adapted to meet new challenges and solve different problems. What
follows is a set of design plans from which the first systems were created,
and which may help illustrate the content that might be included in the
next generations.
SMART PLACES PROCESS
Using the system to plan the future of a community begins with extensive
collaboration between utility providers, city or county agencies, consultants
and regulatory agencies. A map of the proposed project is created using
Geographic Information System (GIS) software. Community resource requirements
for each of seven features (landuse, energy, transportation, communications,
water, waste water and solid waste) are entered. The features can be quickly
modified to create a successive design which performance is again evaluated.
Each scenario of community performance is evaluated in terms of resources
consumed and waste products produced. The process is repeated until community
performance goals are met. Examples of key indicators of community performance
are total energy, water or air emissions.
TERMINOLOGY
A common language has been developed for describing the functional
components and capabilities of the Smart Places systems. Key terms are
given below:
-
Proposal Scenario
-
An interactively generated spatial design. The scenario carries with it
a set of assumptions for each proposal component (geographic feature).
A set of proposal components describes a community development option.
-
Proposal Themes
-
Any one proposal may consist of a number of types of objects (Buildings,
streets, utility services, etc.). Each proposal type will represented in
a separate ArcView theme.Themes are overlaid to show the composite proposal.
-
Proposal Theme Component
-
Any theme within a proposal may contain many components ( example: multiple
buildings)
-
Pocket Attributes
-
Evaluation of proposals will require consideration of a number of attributes
corresponding to each proposal component. For example, for a proposed landuse,
each instance of a landuse type (residential, mixed use etc) might possess
the characteristics of land area, energy, water, wastewater, solid waste
and total persons. Each proposal component will carry its own set of inherited
attributes which may have unique values.
-
Feature
-
An evaluation class which represents a priority for the decision making
process. Each class is a category for which data, measures and indicators
are assembled for evaluation of a community development scenario. For example,
in the community planning process features might include Landuse, Transportation,
Energy, Communications, Water, Wastewater, and/or Solid Waste.
-
Indicator
-
A specific descriptor or objective within a feature evaluation class. For
example, mode diversity might be a specific objective (indicator) for the
Transportation feature.
-
Measure
-
A formula by which a feature is evaluated with respect to a particular
indicator. For example, one might use vehicle vs pedestrian routes as a
measure of mode diversity within the Transportation Feature.
-
Evaluation Process (Information Stock)
-
An equation, an existing or created model, or an index into a data table
which implements a measurement.
-
Link Indicator
-
The outcomes produced from an evaluation process.
-
Value
-
A specific value or a range of values which represent the goal for a Link
Indicator. A weighted score which reflects both the degree of achievement
of a goal and its relative importance. This will allow comparison of various
proposal scenarios.
FEATURE CASTS
As noted in the definitions above, there are seven features. Although
other key features might be considered, the seven chosen features seem
to fulfill the needs of system development. The seven features are landuse,
transportation, energy, communications, water, waste water, and solid waste.
Each feature is described by one or more indicators. Each indicator may
be evaluated using one or more measures. Each measure results in one or
more linked indicators. The definition of each feature is given by a feature
cast. The following example illustrates how the feature cast might be composed.
Example Landuse Cast
Feature:
Indicators:
- Residential
- Commercial
- Mixuse
Measures:
- Acres
- Structure Units
- Energy
- Water
- Wastewater
- Solid Waste
- Persons
Information Stock:
- Persons/Household
- Floor to Area Ratio (FAR)
- Dwelling Units/Acre
- Kilowatt Hours/Structure/ Mo
- Gallons of Water/Capita/Day
- Pounds Solid Waste/Capita/Day
- Pounds Emissions/Kilowatt Hour
- Pounds Emissions/Structure Process/Year
- Pounds Emissions/Ton of Solid Waste
Link Indicators:
- Combined Landuse (Acres/Type)
- Combined Energy (MMBTU)
- Combined Emissions (Lbs/Type)
- Combined Water (Gallons)
- Combined Wastewater (Gallons)
- Combined Solidwaste (Tons)
SYSTEM DESCRIPTION
The Smart Places system was developed on IBM compatible personal computers
using ESRIs ArcView product as a software base. The system uses an ESRI
GIS software license, an ARGIS decision software license and public domain
software developed by a public-private partnership in collaboration with
the Electric Power Research Institute. The Denver Smart Places system is
available with full documentation. The system is optionally compatible
with network based group decision software permitting enterprise collaboration
on community development projects.
The system hardware should be selected with both economy and performance
in mind. IBM compatible machines with 32 MB memory running Windows NT 4.0
or WINDOWS 95 were used to develop and use the system in Denver. Portable
machines can best serve presentation needs to key decision makers. A valued
asset for the system is production color plotting capacity which permits
rapid use of alternative development scenarios by decision makers.
System function for the Smart Places Decision Support System can be
divided into two primary interaction modes: 1) proposal scenario development
and 2) proposal evaluation. Proposal scenario development encompasses interactive
creation, editing, and documentation for community designs. Proposal scenario
evaluation includes selection and identification of indicators for evaluating
and comparing the community designs.
Key components planned for system development to support both scenario
development and design evaluation include:
-
Proposal Scenario Development:
-
Integration of new or additional site data
-
Customized user interaction screens for a range of user expertise
-
Menu selection of design landmarks and reference maps
-
Interactive scenario design and modification
-
Creation of attribute loaded proposal components
-
Link to groupware decision making tools
-
Proposal Scenario Evaluation:
-
Integration of evaluation processes (indicator data and models)
-
Computation of region summaries
-
Selection of analysis features through menu and query delineation
-
Display and selection of indicators relating to selected features
-
Display and selection of measurement formulas
-
Calculation and retrieval of linked indicators
-
On-Screen Display of results:
-
Analytical results
Graphic (map) results
Decision process and rationale
-
Plotting and Export of results in standard format
INTEGRATION OF SPATIAL DATA
Pilot project data includes geographically referenced images and coverages
Spatial data is limited to image files and ArcView shape files (polygons,
lines, points). All other spatial data formats should be converted to the
shape format for use in this system.
Several viewing scales are used including the regional (study area)
scale, site scale, district scale, and specific area scale within a district.
CUSTOMIZED USER INTERACTION SCREENS
A range of user interfaces were developed for different
user levels (novice user, ArcView-familiar user, developer, etc.). Any
user may select the level at which he wishes to interact. The full function
user interface is at the developers level. Lower level interfaces are
subsets of the developers interface and are user selectable.
INTERACTIVE SCENARIO BUILDING
Allows user to interactively create a proposal design
Sketch proposal
Select sketch type from a menu such as road, building
, etc. (makes the appropriate theme active, makes the theme editable, selects
proper sketch tool (line, point, polygon) based on theme type)
Edit sketches
Select edit type from a menu (makes the appropriate
theme active, makes the theme editable)
Need a stop editing function
Allows select, move, resize, stretch vertex, delete,
split?
Allows cut/copy/paste within themes and between like
themes
Restriction themes
Specific themes can be designated as restriction themes.
If the user violates a condition contained in a restriction theme while
developing a proposal scenario, he is notified that there is a potential
conflict.
CREATION OF POCKET ATTRIBUTES
Evaluation of proposals requires consideration of a
number of attributes corresponding to each proposal component. For example,
for a proposed building might need to know type, # of stories, type of
insulation, energy source, etc.)
Attributes are assigned/updated as each component is
created or edited
Smart Places users can also modify attributes of previously
generated proposal components
COMPUTATION OF REGION SUMMARIES
Retrieve summary information on user-delineated areas.
Compare between two or more user-delineated areas. User component attributes
to compute summary information.
INTEGRATION OF EVALUATION PROCESSES
As proposal designs are created, user evaluates the proposal based
on a set of predefined indicators
A database of feature-indicator-measurement-model combinations are
maintained
A model can be in any one of the following forms:
Custom built Avenue script
Stand-alone Windows application launched from ArcView
A look-up table of model results
SELECTION OF MEASUREMENT FORMULAS
Each proposal design is evaluated. The user can delimit
the scope of the evaluation by interactively selecting appropriate features,
indicators, and measurement formulas.
For any one evaluation, multiple indicator-measurement
pairs may be selected for each feature.
ON-SCREEN DISPLAY OF RESULTS
Analytical results
Graphic (map) results
Decision process and rationale
Display results of an evaluation sequence
PLOTTING AND EXPORT OF RESULTS
The system provides mechanisms for easily producing hardcopy
and digital results which document a scenario development and evaluation
session.
Acknowledgements
The Smart Places Project wishes to acknowledge the following organizations
who have contributed to the project:
BRW
California Energy Commission
City and County of Denver
Colorado Governor's Office of Energy Conservation
Colorado Public Utilities Commission
Consortium for International Earth Science Information Network (CIESIN)
Cymbiotics
Denver Regional Council of Governments
Denver Regional Transportation District
Denver Water Board
Electric Power Research Institute (EPRI)
Environmental Defense Fund
Environmental Systems Research Institute (ESRI)
KOA Radio 850/Jacor
Mosaic Management Group
OP Graphics
Public Service Company of Colorado
Science Applications International Corporation
Stapleton Development Corporation
Stapleton Redevelopment Foundation
U.S. Department of Energy Center of Excellence for Sustainable Development
U.S. Environmental Protection Agency, Region VIII
University of Colorado
University of Denver
Urban Consortium Energy Task Force
US West Communications
Principal Technical Advisors
CIESIN - Brenda Faber and Keith Croteau
City and County of Denver - Steve Foute, Randy Schnicker, Roger Johnson
EPRI - Paul Radcliff
California Energy Comission - Nancy Hanson
Mosaic Management Group - Thom Slagle
University of Denver - Amy Keeley and Chris Holtkamp
USDOE - CESD - Ken Snyder
Denver Smart Places - Dave Skiles
Public Service Company - Orlando Reyes
Denver Regional Transportation District - Dave Shelly
US Environmental Protection Agency, Region VIII - Dave Schaller
Stapleton Redevelopment Foundation - Alan Brown
Project Participants
CIESIN
Cymbiotics
Electric Power Research Institute
Public Service Company of Colorado
Colorado Governors Office of Energy Conservation
U.S. Enviromental Protection Agency, Region VIII
University of Denver
University of Colorado
Stapleton Redevelopment Foundation
Stapleton Development Corporation
City and County of Denver
Urban Consortium Energy Task Force
Public Technology Incorporated
Clarion Associates
Denver Regional Council of Governments
Denver Regional Transportation District
Mosaic Management Group
Science Applications International Corporation
Environmental Systems Reserach Institutute
California Energy Commission
City of Scottsdale, Arizona
Colorado Public Utilities Commission
Environmental Defense Fund
U.S. DOE Center of Excellence for Sustainable Development
BRW
OP Graphics
Denver Water Board
KOA Radio 850 / Jacor
US West Communications
For more information please contact the Denver
Smart Places Project.
Email to: smartplaces@smartplaces.com.
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