Did You Know

Importance of Timed Traffic Signals

Interested in saving on fuel costs, reducing negative environmental impacts, and helping provide a more pleasant driving experience? The solution can be found through proper signal timing and coordination. Suppose signals are timed or coordinated incorrectly. In that case, vehicles will likely have to make frequent stops while traveling through a corridor, which wastes time…
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Evolution of Civil and Traffic Engineering

When Sain Associates opened its doors in 1972, the business consisted of consulting engineering services and land surveying. Many projects included site engineering for enclosed shopping malls across the southeast. Believe it or not, some of the mall projects from the 1970s are still in operation today, including the Santa Rosa Mall in Mary Esther,…
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50 Years of Diversification

I joined Sain 29 years ago to fulfill Hack’s vision of diversifying the company with traffic engineering services. At the time, Sain was primarily working on private sector work, including Wal-Mart projects in the Eastern United States and large shopping malls. After joining the team in 1993, I was tasked with leading a traffic engineering…
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Did You Know? ALDOT On-Call Contracts

Did you know Sain Associates has many on-call contracts with ALDOT? There are many benefits of on-call contracts. First, they allow Sain Associates to work with ALDOT on a range of projects. Over the years, the projects have ranged from surveying to corridor and traffic studies to a broad array of design projects. Since a…
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Did you know? Rumble Strips

Have you ever wondered what that terrible noise and vibration are when you slightly veer on a roadway? Those noisy bumps are referred to as rumble strips, and they are formed when a ribbon of asphalt has been milled with a special tool. Rumble strips produce sound and vibration to alert drivers when they cross…
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Holt initiated into Order of the Engineer

Richard Holt, P.E., manager of our Pulaski, Tennessee office, is an initiated member of the Order of the Engineer.  This is a prestigious organization that fosters a spirit of pride and responsibility in the engineering profession. The organization also bridges the gap between training and experience and presents a visible symbol identifying the engineer to…
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Roundabouts in Engineering

In honor of National Roundabout Week, we’re sharing a throwback blog from 2016! A few years have passed since it was last published, but one thing remains the same – roundabouts are a proven safety countermeasure because they can substantially reduce crashes that result in serious injury or death. Roundabouts can improve safety, promote lower…
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Child Passenger Safety Week

Is the buckle too tight? Is it tight enough? My husband and I were suddenly aware of how little we knew as we packed our daughter into her car seat for the very first time. According to the CDC, an estimated 46 percent of car seats and booster seats are misused. As a first-time parent,…
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The Importance of Mile Markers

You may know that mile markers, or mileposts, alert drivers of their location along an interstate or highway, but did you know about the other functions they serve? Mile markers are used to indicate the distance traveled within a state and the distance to a destination, such as a city or a town. The mileage…
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The Story behind Exit 46

Many Southern Middle Tennessee drivers have already traveled through the work zone at Exit 46 on Interstate 65 (I-65) in Maury County. The construction will last approximately three years, but the process started nearly two decades ago. The Tennessee Department of Transportation (TDOT) contracted with Sain Associates in 2002 to begin planning for modification of…
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