KARTOGRAFISCH TIJDSCHRIFT
I999-XXV-2
Literatuur
Geertman, S.C.M. W. Bosveld
(1990), A Gis-based model for goals
achievement analysis and design.
Proceedings European GIS Conference
1990, Utrecht: egis, pp. 356-365.
Moseley, M.J. (1979), Accessibility:
The rural challenge. London: Methu-
en.
Naude, A. T. de Jong (1998),
Planning support tools for addres-
sing accessibility and related rural
developments problems. Proceedings
GISDECO Conference 1998. Pretoria:
University of Pretoria.
Ritsema van Eck, J. en T. de Jong
(!997)> Netwerkanalyse, bereikbaar-
heidsanalyse en GIS. In: P. Hendriks
en H. Ottens (red); Geografische In-
formatie Systemen in Ruimtelijk
Onderzoek. Assen: van Gorkum,
pp. 145-164.
Toppen, F.J. T. de Jong (1991),
GIS ten behoeve van locatiekeuze
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thodiek en toepassing^y, pp. 20-26.
Relevante Websites
http://www. wildcoastsdi. org. za\
Informatie Over de WildCoast sdi
http://flowmap.geog. uu. nl\
Informatie over Flowmap met
downloadable' educatieve versie
Summary
T. de Jong B. de Haas - Visualisation
of accessibility analyses: research in the
Wild Coast area in South Africa
Keywords: use of geographical Infor
mation, visualisation, applications
Recently a case study was undertaken
into the ejfects ofnew market centres and
additional roads in the Wild Coast area
Preview Flowmap 6.4
M3H
Reduction of traveltime
due to new coastroad
Flowmap 6 4 Legend
File: WILDP0P1 DBF
NEW6DIST: 50
File: WILDP0P1 DBF
CATCH6DIST: 50
A File: roadnet.OOx
"v G/roadtype/6
File: townsOOl dbf
Butter worth/name/Willowv.
i\_ File: roadnet.bna
Curves
File: wildpopl.dbf
All origins
Figuur 16. Rela- in South Africa. Special emphasis was placed on accessibility
tieve verbetering ejfects for the local population. Currently a planning support
bereikbaarheid. System (ACCESSMAP) is being developed to allow decision takers
to see' these ejfects as consequences of proposed development
scenarios. Visualisation of the results of accessibility analysis is
therefore ofprime importance. This paper describes the various
steps undertaken in a Gis-based accessibility analysis and shows
the maps used to illustrate the outcome of each Step. It is con-
cluded that good visualisation is a necessary element of any
planning support system and even research tools should be
equipped with some functionality in this respect.
Resume
T. de Jong B. de Haas - Visualisation des analyses d'accessi-
bilite
Mots-cles: utilisation de l'information geographique, visu
alisation, applications
Sur la base d'un exemple concret l'article decrit le role des car-
tes thematiques dans les divers Stades de l'analyse d'accessibilite.
II s'agit d'un logiciel specifique developpe en combinaison avec
la visualisation, vu que les paquets de SIG et de dessin existants
ne pouvaient pas satisfaire aux exigences que posent de telles
analyses: c'est l'objectif principal de ce logiciel en passant neces-
sairement par un examen prealable des resultats.
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