A Summary of
State DOT GIS Activities
Presented at the
2002 AASHTO GIS-T Symposium
Atlanta, GA
Information Sources
E-mail survey of state DOT GIS
managers
• 40 State DOTs responded in 2002
• 2001 surveys used for non-responding states
Results compared with prior year surveys
New questions added:
• DBMS software
• Coverage of road database
• Current major GIS-T projects
Stage of Development
Fully Operational
Early
Implementation
Pilot/
Demonstration
2002
2000
1998
1996
Preliminary
Planning
No GIS Activity
0
5
10
15
20
25
30
GIS Deployment in the DOT
26%
12%
48%
14%
Individual Units
Core GIS Unit & End Users
Single GIS Unit
Enterprise GIS
Location of GIS Unit
8%
26%
24%
2%
6%
34%
Planning
Mapping/Survey
Information Services
Multiple Locations
Engineering
No Official GIS Unit
GIS Budgets
Over $1 million
2002
2000
1998
1996
$500K to $1
million
$100K to $500K
Under $100K
No Report /
Unkown
0
5
10
15
20
25
30
35
GIS Organization: Summary
Nearly all DOTs have initiated GIS
activity.
Over 90% have a recognized GIS unit
Recent trend to locate GIS core staff in
Information Services.
Decentralization of GIS applications to
end users throughout the agency
Significant number of enterprise GIS efforts
Increased budgets for GIS activities
GIS Staff Size
2002
2001
1998
1996
Over 20
11 to 20
6 to 10
5 or Less
No Staff / Not
Reporting
0
5
10
15
20
25
30
GIS Staff Classifications
IS/IT; Programmer
GIS Professional
Planner
Cartographer
2002
2001
2000
Analyst
Engineer
Other
0
5
10
15
20
25
30
GIS End Users
100+
11 to 99
2002
2001
2000
10 or Less
No Report
0
5
10
15
20
25
GIS Staff & Users: Summary
GIS core staff has stayed relatively
constant in size
Rapid growth in GIS use throughout the
DOT
Decentralization of GIS applications
among end-users
Core staff activities focus on database
maintenance and integration, support
and training for end users.
Operating Systems
MS Windows
Only
2002
2000
1998
1996
UNIX & MS
Windows
UNIX/LINUX
Only
0
5
10
15
20
25
30
35
GIS Software in State DOTs
ESRI
Intergraph
Bentley
2002
2000
1998
1996
Caliper
MAPINFO
0
10
20
30
40
50
Current GIS Software Mix
ESRI
14%
Intergraph
2%
4+ Vendors
18%
2 Vendors
30%
3 Vendors
36%
DBMS Software
Oracle
Access
SQL
Sybase
Paradox
DB2
0
10
20
30
40
GIS Software: Summary
Continued migration toward Windows
operating system.
Some growth in DOTs using both OS
Use of multiple GIS software packages
and vendors
Increased market penetration for most
major software packages
Major growth in desktop end user, and webbased software
Base Map Scales
1:12K or
Better
1:24K
1:100K
2002
2000
1998
1996
Multiple /
Other Scales
No Report
0
5
10
15
20
25
30
Road Network Coverage
No Network /
Unknown
22%
All Public
Roads
36%
U.S. & State
Hwys
20%
State &
County Roads
22%
GIS Core Functions
2002
2000
1998
1996
Web Applications
Tech Support /
Training
Enterprise Data
Linear
Referencing
Base Map
0
10
20
30
40
50
Current GIS Staff Activities
Core Functions
Web application
development (18)
Attribute data
integration (12)
Base map
enhancement (11)
LRS development
(6)
Other Activities
Videolog/Photolog
integration (8)
Migration to new
DBMS (6)
Data sharing and
coordination (5)
Migration to new GIS
platform (5)
Current GIS Applications
Road feature
inventory (10)
Highway asset
management (7)
Safety management
/ crash analysis (6)
Highway project
locations (6)
Traffic incident
monitoring (5)
Road conditions /
weather (5)
State highway map /
atlas (4)
Road construction /
detours (4)
Truck permitting /
routing (4)
Environmental
impact analysis (3)
GIS Activities: Summary
Significant growth in web-based GIS
Continued emphasis on base map
enhancement and attribute data
Broad range of applications identified:
Asset management and inventory
Visualization of features and events
Few complex spatial analysis applications