Model was applied to roads in Cape May
- model predicted landcover classes accurately
- desirability of views of land cover types varies among physiographic regions
- maximum views had to be increased, 10 km is probably optimum
- height of canopy must be adjusted for each physiographic region
This pilot study successfully illustrates current and potential applications of GIS to scenic byways identification within the time and funding limitations of this study. We also identified a number of limitations caused by lack of data availability, computer time requirements for analysis and technical constraints in the software.
- automatic identification of viewsheds
- evaluation of viewsheds based on physiographic data
- application of evaluation methods within regions
- evaluation of viewsheds based on cultural and political data
- developement of regional criteria for scenic ranking (requires additional field testing of NJDOT surveys
- first order scanning of highways, statewide for viewshed characteristics (requires extensive computer time)
Limits of current technology:
- ranking views within the criteria set forth by the current NJDOT evaluation method. (A field evaluation technique could be developed that more effectively utilizes the type of information that can be included in GIS data layers.)
- scalar differences between available GIS data and the characteristics typically used in viewshed analysis, limited dedicated GIS modules
- tenuous coorelation between qualitative visual analysis and quantitative GIS data analysis
To view an executive summary in Adobe's Portable Document format,
If you require an Adobe Acrobat reader, follow this link.
A player for this Quicktime movies is called xanim and can be downloaded from here
For more information contact Scott Madry or Rich Bochkay at The Grant F. Walton Center for Remote Sensing and Spatial Analysis.