International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B4, 2012
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia
understood from questionnaire survey results, divisions that
voice a large number of opinions are visited directly to conduct
an interviewing.
*currentlycreated maps
- map type
- latest update date
- update cost ...
*currently using maps
- map type
- purpose of use
*legacy systems
- system type
- data format
- maintenance cost
*requests
- for different dept.
- for sharing maps
Figure 5. Questionnaire form
3.1.3 GIS training and trial GIS
Another point is the provision of a GIS training and the
introduction of a trial GIS prior to the questionnaire and
interview (Figure 6). In the GIS training taking place
approximately three times during a day in a conference room,
domestic and international trends are introduced in addition to
the mechanisms of digital maps and the advantages of using a
GIS. Explanations are provided at two levels: for beginners and
for advanced participants. Trial GIS aims to foster an
understanding of items that are difficult to explain in a training
course and to uncover potential needs through the hands-on use
ofa GIS.
Many personnel have little knowledge about GIS. Conducting
GIS-related questionnaire under these conditions is unlikely to
uncover potential needs. Accordingly, this approach aims to
lead participants to the To-Be condition via the shortest path,
determining issues with current conditions after they have
understood the advantages of a GIS. Although its primary
purpose is to provide a preliminary survey for subsequent
analysis, this also promotes a more thorough understanding of a
GIS and is a first step toward To-Be.
Figure6. GIS training ———
An interesting example of the results of analysis is introduced
below. The following figures show the state of use of maps.
Figure 7 shows the usefulness of mapping in administrative
services. Meanwhile, Figure 8 shows that present map reliability
is low because maps are not updated, that the use of paper maps
means that preparing data is time-consuming, and that
personnel worry about dealing with inquiries from citizens.
No use
Use once a year 6div,8.5%
2div,2.8% Use everyday
31 div, 43.7%
Use once a month __
18 div,25.4%
Use once a week
14 div,19.7%
Figure 7. The current status of use of maps
38
Maps not describe real world
Take much time to process
because of paper maps
Take much time to find places
No maps with complete merger area
Mise. No. of Div.
— Figure 8. Theproblemofuseofmaps ^
3.2 Scenario analysis (phase 2)
3.2.1 Outline
In phase 2, a scenario is developed showing how to realize To-
Be against current issues that have been defined through gap
analysis. The scenarios are covering an integration of base maps
and a direction of existing legacy systems. Carrying out these
activities results in the overall optimization of administrative
works. Figure 9 shows items to be considered, based on the
issues through gap analysis.
Problems from “merger” Problems from “daily works”
Each branch has it's |: Maps not describe real world i
own GIS with non- FE II z E.
standard specs. Maps not updated }
©
ë Thematic maps Willing to use maps |
> situation varied in | owned by other sections
3 eachbranch [Bd Cum
a Uem, - Em Many inquiries É
Do not have E :
completely covered | Do not have GIS, and E
base maps use still paper maps E
SENS Ez "eI
s
Create a plan forinitial — [: MN Create a plan for initial |
development / update of E MA development /updateof |;
p complete base maps E ch thematic maps E
: Create a policy for "specified-GIS" ! Create an operation system |
| Development of ERP-GIS
; Figure 9. Problems and Solutions
3.2.2 Plan for integration of base maps
For the most fundamental base maps, an optimal plan for
creating and integrating maps is drawn up based on the current
conditions for each former area (digital or paper format,
creating method, required scale, update year, etc.). At the same
time, those maps' precision must meet the Japan's legal
requirements such as 1/600 or larger for a sewerage map.
It would be simple if all maps of the whole area could be
created anew in the digital format, but the cost would be
enormous. Therefore, where digital maps are used they are
revised, and where only paper maps are used, existing paper
maps are digitized. The necessary scale is set by area (city area
and mountainous area), and maps are to be in a puzzle-like
manner as shown in Figure 10. As the necessary scale is directly
related to the execution of administrative work, creating method
is decided together with personnel, using Figure 10.
To be updated, Lv.2500
To be newly mapped, Lv.2500
To be updated, Lv.5000
To be newly mapped, Lv.5000
Figure 10. Cost-effective base map integration plan
