USING HIGH-RESOLUTI
FOR COMPUTER-AIDED FORE
* I. R. Karas ^ J. Sessions ^, A. Yuksel * N. Bozali *
A. E. Akay ^
? Kahramanmaras Sutcu Imam University
Kahramanmaras, Turkey - (akay,
b Gebze Institute of Technolog
* Oregon State University, C
d : .
Kahramanmaras Sutcu Imam University (KSU), Facu
Kahramanmaras, Turkey - rg
KEYWORDS: High resolution, DEM, Real-time, LIDAR, Thr
ABSTRACT:
The current forest road design systems are not capable of making computer-aided design judg
t for minimizing the total road costs, or c
alternative grade lines, best fitting vertical alignmen
dimensional (3D) forest road design mo
of alternative road paths. In the mo
3D image of the terrain. The mo
selection of a vertical alignment with the lowest t
accelerator is used to display and render 3D images o
(DEM) data. LIDAR (Light Detection an
and accurate DEM of forested areas. It is expecte
design model incorporating modern graphics ca
modern optimization techniques, and env
AUSZUG:
Gegehwärtige Waldweg-
Erzeugung alternativer Gradlinien,
Berücksichtigung von Umwelteinflüssen. Ein
das den Entwickler durch schnelle Auswertun
Modell werden Ausgangsprobewege erzeugt, 1
Geländes "verfolgt". Das Modell integriert zwei
Auswahl einer vertikalen Ausrichtung mit den niedrigsten G
verbesserter 3D-OpenGL-Beschleuniger wird benutzt, um di
Basis hochauflósender Daten des Digital-Aufzug
schnellsten entwickelnden Systeme auf diesem Gebiet, kann ein
Verfügung stellen. Es wird erwartet,
StraBendesignsystems, das Leistungsfähigkeit
verbesserten Software-Sprachen, modernen Optimieru
verbindet, wird eine Verbesserung
1. INTRODUCTION
Forest road design is a complicated problem relating economic
and environmental considerations. Designers should evaluate
sufficient number of alternative routes to locate a final route
with the lowest total cost, while conforming to design
specifications and environmental requirements. The current
forest road design systems are not developed to provide a
designer with large number of alternative paths. They are
generally used to make the mathematical calculations required
in manual road design. Besides, they are not capable of
minimizing total cost of construction, maintenance, and
transportation costs, OT aiming for least environmental impacts.
BL
Corresponding author.
(KSU), Faculty of Forestry, Departm
ayuksel, nbozali) @ksu.edu.tr
y (GIT) Department of Geodetic
Kocaeli, Turkey - ragib @penta. gyte.edu.tr
ollege of Forestry, Department of Forest Engineering,
john.sessions @cof.orst.edu
Ity of Agriculture, Dep
undogan @ksu.edu.tr
del was developed as a decision support to
del, initial trial routes are generate
del integrates two optimization tec
otal costs, while con
f the terrain in real-time, bas
d Ranging), one of the fastest gr
d to provide even better
pability, advanced remote sensing
ironmental considerations wi
Konstruktionssysteme eignen sich nicht zur
optimaler vertikaler Ausrichtu
dreidimensionales (3D)
g alternativer StraBenverläufe bei
ndem man môgliche Wege mit dem Comp
Optimierungstechniken (lin
esamtkosten in
e 3D-Bilder des Geländes in Realzeit anzuzeig
-Modells (DEM). LIDAR (Light Detection
hochauflôsendes und genaues
noch größere Genauigkeit in n
moderner Graphikprogramme mit
ngstechniken und Berücksichtigung von Un
ON DIGITAL ELEVATION MODEL
ST ROAD DESIGN
. R. Gundogan *
ent of Forest Engineering, 46060
and Photogrammetric Engineering, 41400 Gebze,
Corvallis, OR 97331, USA -
artment of Soil Science, 46060
ee-dimensional, Forestry, Design, Cost
ements such as automated generation of
onsider environmental impact. A three
ol that provides a designer with a quick evaluation
' the possible paths using computer cursor on .
ng and a heuristic approach) for
forming to environmental requirements. Improved 3D OpenGL
ed on high-resolution Digital Elevation Model
he field, can provide a high-resolution
evelopment of the road
d by "tracing
hniques (linear programmi
owing systems in t
accuracy in the near future. The d
technologies, improved software languages.
Il improve the design process for forest roads.
Designkontrolle, wie z.B. automatisiertes
der Gesamtkosten von Straßen oder
ein Werkzeug,
Im
computergestützten
ng zur Minderung
Waldweg-Designmodell wurde entwickelt als
seinen Planungsentscheidungen unterstützt.
uter-Cursor auf einem 3D-Bild des
eare Programmierung und heuristische Annäherung) zur
Übereinstimmung mit den Umgebungsbedingungen. Ein
en und zu übertragen auf
and Ranging), eines der sich am
DEM der bewaldeten Bereiche zur
aher Zukunft zu erreichen. Die Entwicklung des
fortgeschrittenen Fernabfragetechnologien.
nweltbedingungen miteinandet
des Designprozesses für Waldwege darstellen.
ability of high-resolution DEM data and
high performance microcomputers,
designing alternative road paths in the office has become a more
realistic and practical exercise. It is difficult to generate DEM of
a forested area that represents the actual ground condition with
high accuracy. Airborne laser scanner technology generates à
high-resolution and accurate DEM: of forested areas, using à
laser light detection and ranging (LIDAR) system (Reutebuch et
al.. 2003). LIDAR has been used over twenty years in variety of
applications. Most recently, it has been used to provide DEMs
for large scale and high-accuracy mapping (Kraus and Pfeifer,
1998: Means ct al., 2000).
With the growing avail
advanced features of
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