I am trying to understand how they come up with vg1 value in attached slide. Anyone? Thanks in advance...
vg1 = unadjusted demand flow rate on the single lane in the lane group with the highest volume
Started by
jco0518
, Aug 07 2011 03:12 PM
4 replies to this topic
#1
jco0518
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Posted 07 August 2011 - 03:12 PM
#2
Callan74
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Posted 07 August 2011 - 11:37 PM
QUOTE (jco0518 @ Aug 7 2011, 09:12 AM) <{POST_SNAPBACK}>
I am trying to understand how they come up with vg1 value in attached slide. Anyone? Thanks in advance...
I don't see anything attached?
#3
jco0518
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Posted 08 August 2011 - 02:33 AM
QUOTE (Callan74 @ Aug 7 2011, 07:37 PM) <{POST_SNAPBACK}>
QUOTE (jco0518 @ Aug 7 2011, 09:12 AM) <{POST_SNAPBACK}>
I am trying to understand how they come up with vg1 value in attached slide. Anyone? Thanks in advance...
I don't see anything attached?
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#4
sac_engineer
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Posted 08 August 2011 - 05:32 PM
QUOTE (jco0518 @ Aug 7 2011, 07:33 PM) <{POST_SNAPBACK}>
QUOTE (Callan74 @ Aug 7 2011, 07:37 PM) <{POST_SNAPBACK}>
QUOTE (jco0518 @ Aug 7 2011, 09:12 AM) <{POST_SNAPBACK}>
I am trying to understand how they come up with vg1 value in attached slide. Anyone? Thanks in advance...
I don't see anything attached?
The EB thru traffic is 620 vph for 2 lanes (rate passing thru the intersection). The LT rate is 65 vph which is shared by the left lane of the thru traffic before the intersection. Therefore the vg1 at the intersection = unadjusted demand flow on heaviest lane in group = 620 /2 + 65 = 375 vph.
#5
jco0518
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Posted 08 August 2011 - 06:36 PM
QUOTE (sac_engineer @ Aug 8 2011, 01:32 PM) <{POST_SNAPBACK}>
QUOTE (jco0518 @ Aug 7 2011, 07:33 PM) <{POST_SNAPBACK}>
QUOTE (Callan74 @ Aug 7 2011, 07:37 PM) <{POST_SNAPBACK}>
QUOTE (jco0518 @ Aug 7 2011, 09:12 AM) <{POST_SNAPBACK}>
I am trying to understand how they come up with vg1 value in attached slide. Anyone? Thanks in advance...
I don't see anything attached?
The EB thru traffic is 620 vph for 2 lanes (rate passing thru the intersection). The LT rate is 65 vph which is shared by the left lane of the thru traffic before the intersection. Therefore the vg1 at the intersection = unadjusted demand flow on heaviest lane in group = 620 /2 + 65 = 375 vph.
THANK YOU
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