Designing forest road at Hutan Simpan Ayer Hitam Forest using forest engineering RoadEng software

Hasmadi I., . and Ismail Adnan. A.M., . and Saad N., . and Mohd Zaki H., . (2007) Designing forest road at Hutan Simpan Ayer Hitam Forest using forest engineering RoadEng software. [Proceedings Paper]

A well desinged and constructed forest road network is prerequisite to multiple use forest management activities in Peninsular Malaysia. The importance of forest roads justifies emphasis on forest engineering. This includes survey using precision equipments and more recently the use of road engineering software for road planning and design. This paper describes the application of Road Eng software in the planning and design of forest road at Hutan Simpan Ayer Hitam Puchong Selangor. The redesigned roads were to meet specifications of Class 1 Forest Road Specification for Peninsular Malaysia 1988. A distance of 750 meters of the existing forest road was surveyed using precision equipments Impulse Laser Range Finder and Mapstar compass to obtain data on azimuths distance and side slope for every survey stations. Consequently the data was input into Road Eng software to generate Plan Profile and Cross section views of the present road alignment to be used as the P-Line. This is entailed by redesign of the P-Line to meet selected specifications of Class 1 Forest Road Classification for Peninsular Malaysia 1988. Through the plan profile and cross section windows of the software horizontal and vertical alignments of the P-Line were viewed and adjusted. Adjustments were also made to the stations cross section using pre desingned templates. Critical surves were also adjusted to ensure smoother road tangent transitions. The resulting L-Line showed a restricted maximum and minimum gradient of 8 with maximum curve radius of 100 meters. Cross section design at every work station was adjusted to balance cuts and fills with emphasis on minimizing earthwork. The resulting alignments and cross section enabled positions of road stakes of the L-Line to be determined for future placement on the ground. It was also possible to design suitable specifications and placement of culverts and to calculate earthwork volume in the software but they were not within the scope of the study. Importantly the study showed that by using RoadEng software the design of horizontal and vertical alignments as well as cross sections of forest roads can be done easily with just mouse clicks compared to the traditional manual planning and drawing. In conclusion road engineering software such as RoadEng may have potential use in Malaysia Forestry.

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Abstract

A well desinged and constructed forest road network is prerequisite to multiple use forest management activities in Peninsular Malaysia. The importance of forest roads justifies emphasis on forest engineering. This includes survey using precision equipments and more recently the use of road engineering software for road planning and design. This paper describes the application of Road Eng software in the planning and design of forest road at Hutan Simpan Ayer Hitam Puchong Selangor. The redesigned roads were to meet specifications of Class 1 Forest Road Specification for Peninsular Malaysia 1988. A distance of 750 meters of the existing forest road was surveyed using precision equipments Impulse Laser Range Finder and Mapstar compass to obtain data on azimuths distance and side slope for every survey stations. Consequently the data was input into Road Eng software to generate Plan Profile and Cross section views of the present road alignment to be used as the P-Line. This is entailed by redesign of the P-Line to meet selected specifications of Class 1 Forest Road Classification for Peninsular Malaysia 1988. Through the plan profile and cross section windows of the software horizontal and vertical alignments of the P-Line were viewed and adjusted. Adjustments were also made to the stations cross section using pre desingned templates. Critical surves were also adjusted to ensure smoother road tangent transitions. The resulting L-Line showed a restricted maximum and minimum gradient of 8 with maximum curve radius of 100 meters. Cross section design at every work station was adjusted to balance cuts and fills with emphasis on minimizing earthwork. The resulting alignments and cross section enabled positions of road stakes of the L-Line to be determined for future placement on the ground. It was also possible to design suitable specifications and placement of culverts and to calculate earthwork volume in the software but they were not within the scope of the study. Importantly the study showed that by using RoadEng software the design of horizontal and vertical alignments as well as cross sections of forest roads can be done easily with just mouse clicks compared to the traditional manual planning and drawing. In conclusion road engineering software such as RoadEng may have potential use in Malaysia Forestry.

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Item Type:	Proceedings Paper
Additional Information:	9 ills.; 3 tables.; 2 ref. call number: SD235 M3N277 2007
AGROVOC Term:	ROADS
AGROVOC Term:	TECHNICAL PROPERTIES
AGROVOC Term:	INFRASTRUCTURE
AGROVOC Term:	FOREST MANAGEMENT
AGROVOC Term:	MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:13
URI:	http://webagris.upm.edu.my/id/eprint/11084

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