Traffic Study: Intersection wait time predicted to increase 78% over 5 years

The traffic study of Purnell Road has been completed by KLOA and submitted to DuPage County. You can access the full report here:

The most telling information within the report is arguably found on pages 13-14. Here the Level of Service (LOS) and Delay are calculated at various intersections. The most substantial impact to traffic is predicted for the intersection of Purnell Road and Winfield Road. In the report, the information is broken up between three tables:

  • One for existing conditions
  • One for existing plus predicted Trillium Farm conditions
  • One for the year 2025 predicted conditions

In an effort to compare the results for each of these time frames side-by-side and illustrate the related increases, we have used this data to create the following tables:

This table compares the Level Of Service (LOS) for the existing conditions, the existing plus predicted Trillium Farm conditions, and the predicted 2025 conditions.
This table compares the Delay (in seconds) for morning and evening peak hours for the existing conditions, the existing plus predicted Trillium Farm conditions, and the predicted 2025 conditions.

Are you concerned about intersection wait times increasing 25% to 78% over the next five years?

If so, please join us at the next Zoning Board of Appeals meeting on Thursday, December 19 at 6 pm, 421 N. County Farm Road in Wheaton.


Following are the tables produced by KLOA found on pages 13 and 14 that were used to create the side-by-side view above.

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