taxi cabs

GPS

A visualization comparing GPS data from New York City taxis in the days surrounding Hurricane Sandy with the same data under normal traffic conditions.

Using GPS Data to Help Cities in Emergencies

January 15, 2015By Rebecca MaxwellGPS

In October of 2012, Hurricane Sandy struck the East Coast of the United States causing billions of dollars in damage. The super storm became the most destructive hurricane of the season but it also provided transportation researchers a new way to analyze the effect that extreme events have on traffic […]

Geospatial Redux: Paper Maps Win Over GPS, Where to Hail a Cab in NYC, Comic Book Maps

April 10, 2010By Caitlin DempseyGIS Learning

John McKinney makes the argument in the article “Don’t Throw Away Your Paper Maps Just Yet” that while GPS units are great for telling you your location, paper maps are better for telling you the picture of where you are (via All Points Blog and The Map Room). McKinney sites several arguments […]

Land use map from CARETS Final Report, 1979.

GIS From the Past: CARETS

In the early 1970s, a joint pilot project between NASA and the USGS sought to test out the feasibility of integrating data from Landsat and high-altitude aircraft sensors into a regional land use database.

Geospatial Climate Models Show How Fire Seasons Are Changing

Changing technologies, including new satellite systems, and better climate and fire modeling, including the integration of these tools and data capture methods, will likely mean improved fire modeling in the future.

Elements of a Map

Maps are the primary tools by which spatial relationships are visualized. Maps therefore become important documents. There are several key elements that should be included each time a map is created in order to aid the viewer in understanding the communications of that map and to document the source of […]

Learn GIS for Free

There are a few online options to learn GIS for free. Take advantage of resources that provide you access to free courses from some of the world’s best universities and institutions.