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

speed of 50 placing it at LOS C. The signals operated at LOS C during the peak hours, therefore,
these LOS designations are appropriate.
Rt. 94 - Rt. 370 to I-70
This part of Rt. 94 runs from Rt. 370 south on Second St. to Clark St. on two lanes. There it travels
west to Fifth St. and then south to First Capitol Dr. It then travels west becoming four lanes at
Kingshighway and runs south to I-70, a distance of 3.4 miles. It has six traffic signals, a number of
four way stops, and parking on both sides along most of its length. It travels through the City of St.
Charles Central Business District. Average travel speeds in both directions are 23 mph in the
morning peak hour providing LOS C. The signals at this time are also operating at LOS C.
Therefore, LOS C during the morning peak hour is appropriate. During the afternoon peak hour,
average travel speeds in both directions are about 20 mph providing LOS D. The signals handle
more traffic and also operate at LOS D confirming this designation.
Rt. 94 - I-70 to I-64
This segment is six and four lanes divided from I-70 to I-64. It has been divided into three segments
for analysis; I-70 to N. Rt. 364 (old Hemsath Rd.), S. Rt. 364 (north of Harvester Rd.) to Mid
Rivers Mall Dr., and Mid Rivers Mall Dr. to I-64. The first section is 2.4 miles long and has five
traffic signals. During the morning peak hours it had an average travel speed in both directions of
27 mph which places it at LOS at D. Field observations indicate the signals are operating at LOS
D. During the afternoon peak hour the same conditions exist with speeds of 26 mph both ways.
Field observations show the signals are operating at LOS E which is the controlling factor and
determines a LOS E designation.
The segment of Rt. 94 from S. Rt. 364 to Mid Rivers Mall Dr. is 3.4 miles long and has five traffic
signals. During the morning peak hours speeds are about 25 mph placing it at LOS D. However,
the signals are operating at capacity with backups from almost one intersection to another. This
results in LOS F. During the afternoon peak hour the same condition exists with traffic backup from
one intersection to another. This produces extreme congestion. This segment is operating at LOS
E and F during both the morning and afternoon peak hours.
Rt. 94 from Mid Rivers Mall Dr. to I-64 is 3.7 miles long and has five traffic signals. During the
morning peak hour average travel speeds are 36 mph both ways placing it at LOS C. However, the
signals are operating at LOS D, therefore, the segment is operating at LOS D. During the afternoon
peak hours, average travel speeds are slightly higher placing it at LOS C. One major problem exists
on this segment. It is the congestion for northbound traffic at Siedentop Rd., the first signal north
of I-64. This signal operates at LOS F with long backups extending south almost daily to I-64.
Traffic stacks onto the off ramp and often into the through westbound lanes of I-64. This creates
a very hazardous, accident prone situation on I-64.
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