Attachment 26Overview of Observations by Mayor Rob Rennie
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Because of the all the talk of the traffic report was wrong and the EIR should not be certified,
Mayor Rob Rennie decided to observe traffic for himself. After collecting all the below data, he
realized that as part of disclosures, Council members are supposed to share what they learn
when visiting a sight, meeting with neighbors, or meeting the applicant that other Council
members might not know. Below Rob provides data without drawing conclusions.
The below table is traffic counts taken by Rob. He did so by sitting in his car parked in front of
the site facing the route 9 Alberto way intersection and making hash marks on a piece of paper
for cars going in or out of Alberto way. Although he sat for an hour 3 times, the data were
broken into 20 min. pieces for 2 days and 30 min. on the 3rd in order to see how evenly the traffic
is spread over the hour. As you can see from the times below, he started his hour at different
times at or after the 8:00 a.m. hour. He also noted the weather just in case it might have an
effect on traffic patterns. The cars per min. were calculated to help see the rate of cars since the
time for the buckets of data are not all the same.
Rob's Traffic
Count Data
Cars entering or existing Alberto Way to/from Route 9:
Weather Day of Week Date
Time
(a.m.)
Duration
Min. In Out
Per Min.
In
Per Min.
Out
Rain Tuesday 13-Mar 8:12-8:22 10 15 8 1.5 0.5
Rain Wednesday 14-Mar 8:34-8:54 20 31 22 1.6 0.7
8:54-9:14 20 24 15 1.2 0.6
9:14-9:34 20 27 15 1.4 0.6
Clear Monday 19-Mar 8:12-8:32 20 30 23 1.5 0.8
8:32-8:52 20 35 28 1.8 0.8
8:52--9:12 20 37 19 1.9 0.5
Clear Friday 30-Mar 8:01-8:31 30 52 31 1.7 0.6
8:31-9:01 30 45 33 1.5 0.7
The following table has data found in the Hexagon traffic report that was taken on 5/13/15 and is
included here for comparison to the data in the above table. The traffic report took data in 15
min. buckets from 7:00 to 9:00 a.m.. The traffic report calls the peak hour 7:30 to 8:30 shown in
the below table, but Rob found the hour from 8:00 to 9:00 had higher counts and included it
below for comparison.
Traffic Report Data
"Peak hour" 5/13/15 7:30-8:30 60 65 79 1.1 1.2
Hour Rob mostly counted 8:00-9:00 60 90 87 1.5 1.0
The next table below is a count of cars in the parking lot of the Alberto Oaks office building at the
back end of the street. After observing a higher rate of cars coming in than going out, Rob
decided to see how may were going to the office building. The maximum number of cars for this
ATTACHMENT 26
Overview of Observations by Mayor Rob Rennie
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office building is about 120 and is not reached until shortly after 10:00 a.m. At 10:00 there are
still cars coming in. By 8:00 when school traffic is ending, less than ¼ of cars have arrived at the
Alberto Oaks office building. By 9:00 less than ¾ of the cars have arrived at the Alberto Oaks
office building.
Alberto Oaks is 56k sq-ft of office. Rob called the broker for the office to find out that there is
1,800 sq-ft of vacant space in the building. Included below the table is the peak hour rate of
traffic for a 56k sq-ft office building provided by staff in a desk item. One can note the ITE rate is
higher than what was actually observed. The rate given in the staff report is from version 10 (the
latest version) of ITE. The Alberto Way proposed office project used version 9 to calculate trips.
The Town Engineer has told Rob that version 10 (the later version) has a lower trip generation
rate than the one used by the Alberto Way EIR.
Cars in Parking Lot at Alberto Oaks (end of Alberto Way)
Weather Day of Week Date Time Count
Duration
Min
Cars Per
hour
Clear Monday 19-Mar 8:12 29
9:13 76 60 47
9:40 91 27 33
Rain Wednesday 21-Mar 7:58 23
8:46 62 48 49
10:00 110 74 39
10:11 120 11 55
2:58 117
4:00 113
Thursday 22-Mar 6:05 30
Clear Friday 30-Mar 9:03 78
9:31 86 28 17
ITE Version 10 Peak Hour Estimate
56
ITE Version 9 Peak Hour Estimate
?
The table below is a mix of days but ordering of the times of parking lot count at Alberto Oaks.
Mixing Days but ordering time
Wednesday 21-Mar 7:58 23
Monday 19-Mar 8:12 29
Wednesday 21-Mar 8:46 62
Friday 30-Mar 9:03 78
Monday 19-Mar 9:13 76
Friday 30-Mar 9:31 86
Monday 19-Mar 9:40 91
Wednesday 21-Mar 10:00 110
Wednesday 21-Mar 10:11 120
Overview of Observations by Mayor Rob Rennie
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This chart of the data in the table above.
The table below is a replot of the data from the plot above with the Friday data removed. Rob
observed that on Friday more people seemed to becoming to work earlier. By removing the
Friday data the plot shows a consistency of traffic behavior Monday to Thursday and shows the
rate traffic comes into the Alberto Oaks Office complex from 8 to when it is almost full at 10:10.
The low slope from 7:58 to 8:12 and then steeper slope means not many cars come until
sometime after 8:15. From 8:15 to 8:30, the slope is steeper showing the highest rate of cars
coming in. From 8:45 until 10, there is a continued rate of cars coming in.
0
20
40
60
80
100
120
140
7:58 8:12 8:46 9:03 9:13 9:31 9:40 10:00 10:11
Alberto Oaks Parking Count
0
20
40
60
80
100
120
140
7:58 8:12 8:46 9:13 9:40 10:00 10:11
Alberto Oaks Parking Count (Friday Removed)
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