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GCN : April 2013
26 GCN APRIL 2013 • GCN.COM FEATURE 3-D DATA GATHERING SPONSORED BY CDW-G AND CISCO TO LEARN MORE, VISIT: GCN.COM/2013UnifiedComm TOPICS INCLUDE: BUDGET WOES STRENGTHEN UNIFIED COMMUNICATIONS BUSINESS CASE UNIFIED COMMUNICATIONS: A NEW WAY OF DOING BUSINESS BEYOND TELEWORK: THE MAKING OF THE VIRTUAL WORKPLACE VIDEOCONFERENCING COMES OF AGE AGENCIES GET SERIOUS ABOUT VOICE OVER IP UNIFIED COMMUNICATIONS Special Report ment," he said. "So we've covered about 98 percent of the population of Oregon." BEST PRACTICES, NEXT STEPS Analysts appear to be in consensus about the lessons learned from the first genera- tion of LIDAR mapping. First, LIDAR mapping isn't just three- dimensional. The impacts of man and nature cause changes in topography, in- cluding underwater topography. So it's important to rescan periodically. What's more, since the hardware and software continues to improve, and since agencies have come to realize the value of the data, rescans are even more in demand. "We started our collection 2007, flying at 8,000 feet," Charles Fritz noted. "Our spec was we wanted at least one ground point every 1.4 meters of landscape at plus or minus 15 cm. With the new technol- ogy we can easily get 10 or 11 points per square meter. Think of it as putting on a better and better pair of cheater glasses." Secondly, LIDAR pioneers agree on the importance of educating and working closely with those who can make the best use of the LIDAR data. "We spend a lot of time talking with our local stakeholders and developing re- lationships with people throughout the state, letting people know when flights are happening, who can gain from them," said English. "We travel throughout the state on a regular basis, giving presentations and talking about the technology. It's go- ing out to local constituents in different places with different needs and concerns and addressing them directly." Finally, implementers agree that right now the pressing need is for more appli- cations that can make effective use of the data that has already been collected. "The sensor technology to collect the data has reached a point where we have very dense data," Macon said. "Some people can use the point data and go drive their own products and information from it, but a lot of people don't want to have to do all the analysis and digging into the data to get the information out. That's where we try to help evolve products and provide more information to the users." • Public safety and emergency management are at the top of the list of key uses of LIDAR in urban settings, say municipal officials.