CONTACT INFO
CTRE
ISU Research Park
2901 S. Loop Dr.
Suite 3100
Ames, IA 50010
Phone
515-294-8103
Fax
515-294-0467
Webmaster:
mregenol@iastate.edu
Functionality Within Current
Scope of GIS-ALAS (minimum functionality)
GENERAL FUNCTIONALITY
statewide capability
PC-ALAS capabilities: existing; update
Data accessible via Web
Queries accessible via interactive Web session
Data accessible on CD ROM
Application available on CD ROM
Performance - efficient, quick response time
Interaction with external programming languages (C, Java, etc.)
Implications for portability
Implications tiling/statewide query
Learning curve for programming
Learning curve for end users
Flexibility, etc. of application development language
Ability of server to handle volume of requests
Cost - Web distribution
Cost- CD ROM distribution
DATA UPDATES/INTEGRATION
update data, cartography (regular, improved)
volume data/other "base" data -> current and historical <- problem results in flag?
Snap nodes to links
Import/export options. Interoperability. (*** What are our requirements? *** )
Spatial data structures
used (including raster?) for later analysis
QUERIES
Logical query
high accident locations/search by BAC>0.10
select subset of accidents based on any field in the database
choice of statewide, county,
citywide queries
Spatial query
beat/area request
graphical selection of a single node/link or a set of nodes/links
graphical selection of nodes in a polygon (county, city, etc.) of a background coverage
graphical selection of nodes
within a user-defined area (e.g., circle radiating out from user-specified
point, or a user-defined polygon)
Query interface
interface for queries
ANALYSIS
Implications for analytical/statistical
programming
OUTPUT
Reports
local area report - priority to intersection
develop reports on frequency/location of ANY accident report form element
ability to select format of report
ability to create and save
user-defined report formats
Maps/diagrams
accident diagrams
Maps of accidents in a given city or county
Pie-diagram maps of accidents at nodes (e.g., by cause, number of vehicles, etc)
intersection maps
MAINTENANCE
system maintenance
Easily adjust for changes
in format of accident database.
OTHER
interdisciplinary utility (?)
jurisdiction info - govt,
service, etc. (?)
Functionality Outside Scope
of Year 1 of GIS-ALAS (enhanced functionality)
GENERAL FUNCTIONALITY
DATA UPDATES/INTEGRATION
tie into videolog/GPS
overlay "other" data (e.g., landuse, road features, health care facilities)
borders
FRA data
aerial photos/DOQs/DEMs
weather
location of maintenance and emergency equipment
note major infrastructure changes
service districts
classify by type of intersection/turning movement (develop database)
consider security/proprietary
info
QUERIES
Logical query
Spatial query
Query interface
ANALYSIS
interdisciplinary applications
identify historical "drops"
Analysis of relationships
in accident causation - volumes, v/c (LOS), road condition, weather, lighting,
etc., etc.
OUTPUT
Reports
Maps/diagrams
MAINTENANCE
OTHER