Selecting the Appropriate Intersection Control
By Kevin Kuhlow Studies by the U.S. Department of Transportation’s Federal Highway Administration indicate that of all the traffic accidents that occur in the United States in a given year, fully half occur at intersections. And, on average, those intersection crashes account for 25 percent of all U.S. traffic fatalities. About the Expert: Kevin Kuhlow,… Read More »
Tags: ICE, ICE Report, Intersection Control Evaluation, Intersections, Modern Transportation Systems, Traffic Accidents
The Many Benefits of Elevation-derived Hydrography
By Tyler Kaebisch Hydrography data is crucial to a wide range of essential applications, from infrastructure management to flood mitigation. State agencies, soil and water conservation districts, engineering departments, and more all rely on stream and river data. About the Expert: Tyler Kaebisch is a project manager in the aerial mapping group at Ayres, He’s… Read More »
Tags: DEM, Digital Elevation Model, Elevation-derived Hydrography, hydro-DEM, Hydrography, Hydrography Data, LiDAR, River Data, Stream Data, USGS 3DEP Elevation Data, USGS 3DEP Lidar, Watershed Stream Networks
Concrete vs. Asphalt: What’s the Best Roadway Surface?
By Brett Hollister, PE Budgets for roadways are tight, and elected officials have to seek the most value for limited construction and maintenance dollars. Unlike homeowners contemplating a new driveway, municipalities may be looking at miles of surface that must safely accommodate hundreds of vehicles a day. So which is the best investment, asphalt or… Read More »
Tags: Asphalt, Asphalt vs Concrete, Concrete, Installation, Markings, Pavement, Road Maintenance, Roadways, Traction, Traffic