The section of Interstate 70 (I-70) from Fifth Street in St. Charles to Interstate 270 (I-270) is widely considered the busiest road in Missouri, based on high traffic volume measurements.
This particular stretch of highway serves as a critical artery for commuters and freight, experiencing substantial daily traffic. Its designation as one of the state's most heavily trafficked corridors is supported by historical data.
Understanding Traffic Volume
Traffic volume is typically measured by Annual Average Daily Traffic (AADT), which represents the total volume of traffic on a highway segment for one year, divided by the number of days in the year. A higher AADT indicates a busier road.
- Key Data Point: In 2005, the section of I-70 from Fifth Street in St. Charles to I-270 recorded AADT counts approaching 165,000 vehicles. This significant number highlights its status as a primary conduit for transportation in the region.
Factors Contributing to High Traffic
Several factors contribute to the intense traffic on this segment of I-70:
- Interchange with I-270: The convergence with I-270 is a major contributor to the high traffic volumes. I-270 serves as a crucial beltway around the St. Louis metropolitan area, channeling a large volume of regional and interstate traffic onto I-70.
- Gateway to St. Louis: As I-70 approaches the St. Louis urban core from the west, it naturally funnels traffic into and out of the city, including commuters, commercial vehicles, and travelers passing through.
- Population Density: The surrounding areas in St. Charles and St. Louis counties are densely populated, leading to a high demand for road infrastructure for daily commutes and local travel.
Even after I-270 draws off a significant portion of the traffic, I-70 continues eastward through Bridgeton, maintaining its importance despite narrowing to six lanes.
AADT Snapshot: I-70's Busiest Segment
To illustrate the immense traffic volume, here's a snapshot of the AADT for this critical section of I-70:
| Highway Segment | AADT (2005) | Notes |
|---|---|---|
| I-70: Fifth Street (St. Charles) to I-270 | ~165,000 | One of Missouri's most heavily trafficked sections |
For more detailed information on Interstate 70 in Missouri, you can refer to resources like the Wikipedia page for Interstate 70 in Missouri.
