St. Charles County Transportation Plan 2030 - East-West Gateway ...

Rt. 94
The section of Rt. 94 from U.S. 67 at West Alton to Rt. B at Boschertown is a two-lane road with
low volumes, averaging around 3,500, and it is not expected to increase much by 2030. It’s LOS
will remain the same at B.
Rt. N
From Rt. Z to Rt. T this road serves mainly a rural area. Some residential development is occurring,
from Rt. Z to the west, and is expected to continue in the future. By 2030 it is expected that traffic
volumes will increase from an average of 4,000 to 12,000 vehicles per day. The road should operate
at LOS C and only a few local road intersections will become a concern.
Rt. P
Traffic on this road has been growing considerably with residential development occurring all along
its length from Rt. M to U.S. 61. By 2030 it is expected to carry 16,000 vehicles, up from about
8,000 at this time. Some signals may be installed at major intersection, however, they should be
designed with these forecasts in mind and have adequate lanes. They may operate at LOS D during
the peak hours and so will parts of the road. The most serious parts will be close to Rt. M on the east
and U.S. 61 on the west.
Rts. B, C, D, F, H, J, T, W, Y, and DD
These roads are all in rural parts of the county and will not be affected much by the growth of the
county and in traffic volumes. One exception could be the section of Rt. DD from I-64 southwest.
This section of the road is adjacent to the I-64/Winghaven Blvd. interchange and the development
that is occurring in this area. It is quite possible that growth may spread southwest along the road
as demand for other types of commercial and residential development grows in close proximity to
I-64. In addition, more residential development could occur in the New Melle area which is at the
junction of Rt. D and Rt. Z. This could cause increased traffic on the roads in these areas.
C-3. Future Traffic Volumes and Travel Conditions on County Roads
Year 2030 traffic volume forecasts for major county roads are also shown on Figures 7, 8, and 9.
The forecasts were developed from traffic counts acquired from a number of sources including the
county, many of the cities, and counts made by consultants. These data were used with some
discretion as they were not factored to represent Average Daily Traffic counts like those produced
by MoDOT. The growth rates of forecasted traffic were based on the population and employment
forecasts in each road’s area. Particular attention was paid to Principal Arterial roads and some
Minor Arterials. Forecasts were not made for roads with lower functional classifications due to a
lack of data. The county’s transportation department is presently developing a system for collecting
traffic counts on all county roads so they can develop their own forecasts. The roads are discussed
below from east to west with only an indication of the degree of congestion that can be anticipated
rather than assigning a specific LOS. Roads with lower traffic volumes that are not expected to have
congestion problems in the future were not discussed.
C-3.1. Principal Arterials
Principal Arterial county roads are mainly multi-lane roads that were upgraded for some time and
serve areas that are mostly developed. The following discussion of each road describes expectations
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