Did You Know? Travel Demand Models Help Planners Predict Travel Patterns

Posted by on Jan 29, 2019 in Uncategorized | No Comments
Did You Know? Travel Demand Models Help Planners Predict Travel Patterns

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. […]

Did You Know How Mile Markers On The Highway System Are Established?

Posted by on Nov 27, 2018 in Did You Know | No Comments
Did You Know How Mile Markers On The Highway System Are Established?

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 […]

Did You Know? Traffic Loons

Posted by on Apr 17, 2018 in Did You Know | No Comments
Did You Know? Traffic Loons

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 […]

Did You Know: GIS Mapping

Posted by on Mar 14, 2017 in Did You Know | No Comments
Did You Know: GIS Mapping

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).

Did You Know: Superelevation

Posted by on Nov 8, 2016 in Did You Know | No Comments
Did You Know: Superelevation

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 […]

Did You Know: Roundabouts

Posted by on Oct 25, 2016 in Did You Know | One Comment
Did You Know: Roundabouts

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 […]

Did You Know: Roadway Design and Guardrails

Posted by on May 10, 2016 in Did You Know | No Comments
Did You Know: Roadway Design and Guardrails

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 […]

Did You Know: The Difference Between Detention Ponds and Retention Ponds

Posted by on Feb 2, 2016 in Did You Know | No Comments
Did You Know: The Difference Between Detention Ponds and Retention Ponds

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.

Did You Know: Precise Measuring Devices and Accurate Boundary Surveys

Posted by on Aug 18, 2015 in Did You Know, Survey | No Comments
Did You Know: Precise Measuring Devices and Accurate Boundary Surveys

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.

Did You Know: Working With the Land and Where to Build What

Posted by on Jun 24, 2015 in Did You Know, Site Engineering | No Comments

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.