We are excited to announce the acquisition of Vision Engineering & Planning, a transportation planning and engineering DBE firm with offices in Columbia, MD and Atlanta, GA.
By: Paul Gilliam, P.E., Senior Project Manager Travel Demand Forecasting involves the use of a variety of models to duplicate Trip Generation, Trip Distribution, Mode Choice (e.g. car, transit, bicycle, etc.), and Highway/Transit assignment in a metropolitan region. The models are coded using a program language that is typically executed using Cube or TransCAD software. […]
By: Mark Randall, PE (TN), CPESC You may know that mile markers or mile posts tell drivers their location along an interstate or highway, but did you know how those markers are established or the other functions that they serve? Mile markers are used to indicate the distance traveled within a state as well as […]
By: Diane Hammonds, P.E. / Branch Manager / LA office Some of us know about the birds called loons, but as traffic engineers we have loons too! A loon is also referred to as a “Michigan Left” because of their wide use there. It is pavement constructed outside of the travel lane to allow for vehicles […]
Geographic Information System (GIS) is a computer system for capturing, storing, checking, and displaying data related to positions on the Earth’s surface. This system utilizes a combination of computerized drafting technology (for drawing point, line, and polygon features that represent real world objects) and relational database technology (for storing detailed information about those objects).
By Mark Randall, P.E. Similar to how NASCAR tracks utilize “banking” to help a car’s downforce and velocity through a turn, civil engineers use superelevation on regular roadways to do the same thing. While some tracks, such as the Talladega Superspeedway, are banked up to 33 degrees (an increase of 6.5’ in vertical elevation every […]
Posted by Nathan Currie, P.E. Although Alabama does not have as many roundabouts as some of its neighboring states, such as Florida or Georgia, these intersections are becoming more common throughout the state. This could be due to the Alabama Department of Transportation (ALDOT)’s 2015 release of a Roundabout Planning, Design, and Operations Manual providing […]
As civil engineers and surveyors, there are many aspects of our daily jobs that are second nature to us. But we hear common questions about our field often from the public. In this “Did You Know” blog series, we’ll answer some of these questions. The Federal Highway Administration’s guidebook entitled Flexibility in Highway Design stresses the importance […]
As cities grow and land development expands, properly diverting water becomes an important issue. Cities typically require that the developer not increase the amount of water discharging from the site after construction is complete. In order to control excess water and prevent runoff, or the water that flows downhill after a storm, detention or retention ponds are used to prevent any flooding or erosion.
As civil engineers and surveyors, there are many aspects of our daily jobs that are second nature to us. But we hear common questions about our field often from the public. In this “Did You Know” blog series, we’ll answer some of these questions.