Tag: gps

Transit stops on Garmin

One of the biggest benefits of transit agencies making their raw schedule data publicly available, as TriMet and others have done, is that riders are free to do interesting things with the information that the agency itself might not have thought of or have taken the time to do themselves. Case in point: Brett Warden in Portland is using TriMet’s GTFS feed to create a POI (points of interest) file for his dashboard-mounted GPS.

nice open geodata example

Wherigo

As a person enters and exits these zones, an author using Wherigo Builder can create rules that generate media events on the device. The author can also create virtual objects and characters that “live” within the zone for the person to interact with.

National Positioning Architecture

Data communications networks currently support PNT capabilities by carrying PNT aiding and augmentation data, GIS data, etc.; however, opportunities exist to exploit the synergy between RF-based PNT and communications by leveraging communications capabilities to provide PNT capabilities directly. This is consistent with the multiphenomenology vector of employing diverse sources and information paths, and would increase PNT robustness by offering services outside of traditional radionavigation spectrum. Leadership and initiative is needed to avoid stove-piped solutions, and detailed assessments regarding specific solutions are needed, so the US should establish a community of experts to pursue synergies between communications and PNT. Initially, the US should study the lessons learned from existing PNT/Communications fusion efforts, such as cellular and WiFi networks, iGPS, tactical radio networks, E911, the Air Force Satellite Control Network, and NASA‘s SCA to help determine what provides the best options for both systems and their users.

this might a common clock and reference frame encoded on all broadcast signals, and compatibility with indoor systems (such as WiFi)- if you get a signal from anything you get some location info.

Don’t trust Sat Nav

Britain’s first official road signs to warn drivers about the dangers of trusting their satellite navigation devices were introduced on Tuesday in a Welsh village. The signs could be brought in across the country if the trial is successful.

ha. that sign will do no good. you can’t just pull signage like that out of your behind and expect tired and hurried truckers to parse them correctly. still, how about getting the navteq data fixed?