![]() These comparisons established the rate of error for each distance-based subset for the On-Road, Off-Road, and Curved Path measurement groupings taken from Google Earth Pro versus conventionally-obtained measurements. The accuracy of the relative measurements was divided into distance-based subsets within the three groups for example, the error of measurements ranging from 0 - 12 feet to over 1000 feet both On- and Off-road were quantified and compared. ![]() Google Earth and Google Earth Pro have similarities and differences, with the latter being more advanced. It is capable of measuring not just straight lines but also areas, a feature that is crucial in getting geographical data. These measurements were compared to the measurements obtained of the same features from current and historical satellite imagery within Google Earth Pro. While Google Earth has distance measurement tools, Google Earth Pro has more. Measurements of relevant features at each location (crosswalks, curved roadways, off-road features, etc.) were documented and subdivided into three groups: On-Road, Off-Road, and Curved Path measurements. Researchers documented and obtained 1305 unique measurements from 68 locations in 25 states and provinces in the United States, Canada, and Australia using measuring wheels and tape measures. ![]() However, based on what I perceive Jack Dangermond’s mantra to be, ArcGIS Earth is going to evolve into a powerful mapping tool and platform for consumerizing feature-rich GIS data, much like Google Earth did in the past 10 years, but in a much more GIS way. With the prevalence of satellite imagery in the analysis of collision events growing in the field of accident reconstruction, this research aims to quantify, refine, and compare the accuracies of measurements obtained utilizing conventional instruments to the measurements obtained using Google Earth Pro software. As it stands now, ArcGIS Earth 1.0 is much like Google Earth with a few added features.
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