Abstract: Selecting the appropriate receiver is an issue when a major portion of global positioning system (GPS) data collection is below forest canopies. This study compares four low-cost GPS receivers, in order to determine the ...

Abstract: Estimating the number of new bidders in construction auctions is relevant for both private companies and contracting authorities. For private companies, it allows the total number of competing bidders to be estimated, which ...

Abstract: The geographic location of points using global positioning system (GPS) receivers is less accurate in forested environments than in open spaces because of signal loss and the multipath effect of tree trunks, branches, and ...

Abstract: When a project activity has already started, tracking information such as percentage complete and current activity duration and cost can be easily retrieved. This information can be used to update the project schedule to ...