Where is the nearest diverging diamond interchange?
DDI Openings by Date
| Interchange | Location | |
|---|---|---|
| 1 | I-44 @ MO 13 | Springfield, MO |
| 2 | US 60 @ National Ave | Springfield, MO |
| 3 | I-15 @ American Fork | American Fork, UT |
| 4 | I-270 @ Dorsett Rd | Maryland Heights, MO |
How many diverging diamond interchanges are there in the US?
123 in the United States of America with 29 more under construction.
What is the point of diverging diamond interchange?
The Diverging Diamond Interchange (DDI) is a simple design innovation that improves safety and mobility, often at a much lower cost, compared to conventional interchange designs. The key to what makes a DDI work so well is how left turns are handled.
How many diamond interchanges are there?
DDIs are proliferating because they’re safer than a traditional four-way intersection. Where two, two-lane roadways intersect, drivers have 32 separate opportunities to collide into each other. In a DDI, there are only 14.
Are Diverging Diamond Interchange good?
Benefits of Diverging Diamond Interchanges It is easy to navigate, eliminates last-minute lane changes, and provides better sight distance at turns, resulting in fewer crashes. The design reduces congestion and better moves high volumes of traffic without the need to increase the number of lanes in an interchange.
Are Diverging diamonds helping with traffic flow?
A new study has provided evidence that an innovative type of road structure called a diverging diamond interchange (DDI) can help to improve traffic flow and minimize the risk of collisions occurring.
Are Diverging diamonds safer?
The study found that the DDI ramp terminals were safer than the conventional diamond signalized terminals. The DDI ramp terminals experienced 55% fewer fatal and injury crashes, 31.4% fewer property damage only crashes, and 37.5% fewer total crashes.
Does diverging diamond help traffic flow?
How much does a diverging diamond interchange cost?
For a new interchange
| Interchange | Location | Alternative Design Cost |
|---|---|---|
| I-435 / Front Street | Kansas City, MO | Diamond $11.4 Million Single Point Urban Interchange (SPUI) $25 Million |
| SR-265 / SR-62 | Utica, IN | $118 Million |
| I-590 / Winton Road | Brighton, NY | SPUI $10 Million Triple Left Diamond $13.6 Million |
Are diverging diamond interchanges safer?
Does diverging diamond help traffic?
It’s not often that you can make traffic flow more smoothly and safely without spending significant time and money. Fans of the new highway interchange design say it improves traffic flow by eliminating problematic left turns. There’s just one catch: It briefly sends all cars over to the left side of the road.