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Highway Signs in Vermont and the Latest Traffic Design Trend: The Diverging Diamond Interchange

Posted by Writer - December 21, 2017 - Highway Signs, Safety Signs
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The latest innovation in traffic design that is becoming more and more popular across the nation is the diverging diamond interchange. Although these interchanges can be found in quite a few states throughout the country, many motorists and residents are still unsure of just what a diamond diverging interchange is, and how it works. Take a look at a few of the answers to commonly asked questions about diverging diamond interchanges to learn how beneficial they can truly be.

What is a diverging diamond interchange?

A diverging diamond interchange (DDI) is a traffic design in which cars driving in both directions temporarily cross over to the left side of the road to travel through an interchange. Opposing traffic is separated with a raised concrete island while traveling through the interchange, before again returning to the right side of the road and picking the original traffic pattern back up. This design is utilized near large interstates, and helps to safely control the heavy volume and flow of cars both entering and exiting the highway.

Because of the design, drivers that are exiting the interstate do not have to try to navigate across multiple lanes of opposing traffic in order to make left hand turns. Cars that are entering the highway also have easier access, as drivers can make a free and open turn onto the on-ramp without having to travel in front of any on-coming traffic. While the design might initially seem daunting and confusing, each DDI is marked with ample traffic signals, pavement markings and safety signs in Vermont so that drivers don’t turn in to a wrong lane.

What are the benefits of a DDI?

With fewer lanes and fewer traffic signal phases in use, DDIs can pave an effective path to cost savings for various municipalities. With well-defined lane assignments and free-flowing turning areas, these intersections are also just as safe for cyclists and pedestrians as they are for motorists. Because the flow is improved and all drivers are able to navigate the intersection safely, congestion and backups that cause delays and potential accidents during drivers’ commutes in these areas are greatly reduced. Overall, DDIs improve both driver and pedestrian mobility, while efficiently providing simpler, quicker ways to enter and exit the highway.

There are currently two diverging diamond interchanges planned for I-89 in Vermont. Since the idea of driving on the opposite side of the road, even if only briefly, is a relatively unfamiliar concept, it is imperative that the highway signs in Vermont that are to be used in these areas are easily readable and help maintain the flow of traffic.

Here at Always On Time Sign & Design we know all about the importance and value of good signage, whether it is helping to maintain the flow of traffic or providing the advertising that will take a business to the next level. We take pride in making great signs, no matter the application. Give us a call today to learn more about all of our products and services!

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