TECH TALK
vehicles sold globally was 83 million, and the estimated number of GA and commercial aircraft was roughly 3,700 — detailed fi gures were not readily available for these estimates. Apparently aerospace and aviation need to invest in their
futures a bit more, or more young and innovation-minded talent will fl ock to other industries instead. Let’s touch on a number of key recent advances in automotive and compare them to related aerospace technologies.
CONNECTED CARS VERSUS NEXTGEN A fair battle or not, since these are not exactly the same? NextGen and its predecessor technologies had a large head start on the automotive market, based upon radar technologies and air- to-ground communications directing traffi c. The automotive market has used lessons learned from aviation and adapted emerging technologies well. As aircraft will do in the NextGen
environment with ADS-B/C with support from GPS, automobiles will use wireless V2V communications and send messages to each other with information about their activity (speed, location, direction of travel, braking and loss of stability). This will be via a Wi-Fi-like network with a range of 1,000 feet (or ~10 seconds at typical highway speeds). ‘Intelligent’ traffi c signals or other static traffi c monitoring devices are called V2I. The combination of V2V and V2I creates a dynamic traffi c environment that can adapt traffi c management based upon information gathered in near real time. Where V2V/V2I has an advantage
over NextGen/ADS-B/C is that it is a “mesh” network, which requires that each and every node (every vehicle, smart traffi c signal, embedded road sensors and monitoring equipment) will send, collect and re-transmit communications. It is estimated that between fi ve to 10 ‘hops’ on the mesh network would quantify traffi c conditions a mile ahead. This has the potential to provide signifi cant warning to drivers approaching bottlenecks and provide them with time to possibly take action, as well as allow traffi c management centers to manage traffi c fl ow better by adjusting traffi c lights more effi ciently.
Safety issues will also be addressed since connected
vehicles will have some warning of another car running a red light or stop sign or veering into a lane, and take automatic action before a driver can react to such an event. This concept crosses over to self-driving vehicles. . V2V is in its early testing phases and is clearly behind NextGen in maturity, but has the potential to be more useful once it reaches a critical mass of vehicles with the technology deployed and infrastructure installed. NextGen might eventually have to take a few lessons from this set of technologies.
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