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Regular Agenda Item #7
Edelweiss Ridge (Bald Prairie 1-2) Cursory Traffic Impact Analysis
Analysis based on 21 Lots of Single Family Detached Housing
Utilizing the Institute of Transportation Engineers Trip Generation Report (see attachment for
ITE independent variable assumptions)
Using the traps, pectitvetE g= pit assumption, (recommended practice as per ONO)
)
21 lots x 'IQ:.8 vehicles per day (vpd) = 226.8 vpd
21 lots x . vehicles per the peak hour (vph) = 21.21 vph
A residential roadway (local road) has a capacity of 2000 vpd
In regard to level of service (LOS) with a scale of A thru F with A being the best and F the worst
and using the ratio of volume to capacity, LOS A = 333 vpd, LOS B = 666 vpd, LOS C = 999
vpd, LOS D = 1332 vpd, LOS E = 1665 vpd, LOS F = 2000 vpd
Assuming all trips would be utilizing Rene Lane to ingress and egress (actually there would be
two avenues of ingress and egress in this development) the LOS is still within acceptable LOS
of between A & B with the acceptable LOS standard being LOS D.
If we make the assumption of four vehicles per household and using the ITE trip generation rate
for single family detached house based on vehicles per household (assumption not
recommended by ITE see attachment) the analysis results are as follows:
21 lots x 4 vehicles x 6.55 vpd = 550 vpd
21 lots x 4 vehicles x.76 vph = 64 vph
The results are LOS B with the acceptable LOS standard being LOS D.
Additional information Barron Rd widening to 4 lanes with raised median and classified as a
minor arterial has a capacity of 30,000 vpd according to the Bryan /College Station Unified
Design Guidelines. The raised median would restrict left turns in and out of Rene Lane to
Barron Rd lowering the volumes on Renee Lane even more and not taken into account in
analysis above.
Victoria Avenue classified as a major collector has a capacity of 10,000 vpd, again according to
the Bryan /College Station Unified Design Guidelines.