Document Type

Report

Publication Date

5-2001

Abstract

The main objective of this research was to evaluate the use of remotely sensed images as a method to facilitate accurate and rapid collection of large quantities of inventory data. Images collected from either an airplane or satellite can be collected fairly rapidly for large areas without locating on-road or interfering with traffic. With the launching of the IKONOS satellite, resolutions of 1 meter can be practically obtained from space. Image resolution of as high as 1-inch are possible with aerial photography. Aircraft can be flown at higher altitudes for lower resolutions. Since cost typically decreases as resolution decreases, one of the goals of the research was to test images at different levels of resolution to make recommendations on the minimum necessary to collect specific inventory features. This is especially important since many agencies already have access to low resolution images such as the USGS orthophoto quarter quads. Besides the advantage of more rapid data collection, use of remote sensing may allow collection of data which was previously difficult to obtain from conventional methods.

Comments

For this and other reports from InTrans please go to http://www.ctre.iastate.edu/research/detail.cfm?projectID=395

Granting Agencies

National Consortium on Remote Sensing in Transportation for Infrastructure

Language

English

File Format

PDF

File Size

242 KB

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