District 10 Mobility Performance Report
2018 First Quarter
DEPARTMENT OF TRANSPORTATION
August 6, 2018 : Jaime Q. Quesada
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District 10 Mobility Performance Report
2018 First Quarter
EXECUTIVE SUMMARY
Overview
Caltrans District 10 contains eight counties located within the Central Valley (San Joaquin /
Stanislaus / Merced) and the Sierra Nevada (Amador / Calaveras / Tuolumne / Mariposa /
Alpine). Over the years detection in Alpine and Calaveras Counties has been sparse, so the
District 10 Mobility Performance Report (MPR) no longer includes these two counties in the
quarterly or annual analysis.
The MPR quarterly analysis compares information in the current quarter to that of the previous
quarter and the quarter one year prior. The following are the performance measures reported in
the MPR:
Vehicle Miles Traveled (VMT)
Vehicle Hours of Delay (VHD)
Lost Lane Miles (LLM)
Detector Health (DH)
This information is based on data collected every day of the quarter, twenty–four hours a day, by
automated vehicle detector stations deployed on urban-area freeways where congestion is
regularly experienced. The MPR presents congestion information at two speed thresholds: delay
from vehicles traveling below 35 miles per hour (mph), and delay from vehicles traveling below
60 mph. The delay at the 35 mph threshold represents severe congestion while delay at 60 mph
represents all congestion, both light and heavy. These thresholds are set by Caltrans and are
based upon engineering experience and District input.
FINDINGS
In the first quarter, total delay equaled 208 thousand vehicle hours of delay (VHD) at the 35 mph
speed threshold, and 781 thousand VHD at the 60 mph threshold. Compared to the same quarter
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the year before, there was a 151.2 percent increase in 35 mph quarterly delay and 37.7 percent
increase in 60 mph quarterly delay. The average weekday delay experienced in this quarter was
approximately 2,900 VHD at 35 mph, and 11,036 VHD at 60 mph. The increased delay numbers
mainly attributed to 35 percent increase in number of good detectors compared to the first
quarter of 2017.
The following District 10 projects are currently being constructed or are scheduled for
construction effective February 2018. These current and future (planned) projects will further
relieve congestion in District 10:
MERCED COUNTYMER 99 NB LIVINGSTON MEDIAN WIDENING; EA 10-0Q121Lane widening from 2 to 3 lanesApprove Construction Contract Date – 08/01/2021End Project – 10/02/2023
MER 99 SB LIVINGSTON MEDIAN WIDENING; EA 10-0Q122Lane widening from 2 to 3 lanesApprove Construction Contract Date – 01/19/2019End Project – 10/01/2021
MER 152 – LOS BANOS BYPASS SEGMENT I; EA 10-41911Convert 4 lane expressway to 6 lane freewayApprove Construction Contract Date – 05/15/2018End Project – 10/01/2020
SAN JOAQUIN COUNTY SJ 4 RAMP METERING IMPROVEMENTS; EA 10-1F180Install ramp meters along SR 4 between the I-5 and SR 99 ConnectorsCurrently in PRS/PDS; PA&ED Scheduled for mid-2016End Project – Estimated to be mid 2020
SJ 120 RAMP METERING IMPROVEMENTS; EA 10-1F040Install ramp meters along SR 4 between the I-5 and SR 99 ConnectorsCurrently in PRS/PDS; PA&ED Scheduled for mid-2016End Project – Estimated to be mid 2020
I-205 SMART CORRIDOR PHASE 2; EA 10-1C330Install ramp meters and ITS elements along I205 from MacArthur to Grant Line RoadCurrently in PA&EDEnd Project – 11/01/2021
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STANISLAUS COUNTYSTA 99 / SJ 99 RAMP METERING & MAINLINE IMPROVEMENTS; EA 10-1C300Improve Mainline and Ramp Operations; Standardize Structure Clearance; Add Auxiliary LaneCurrently in PA&ED End Project – Estimated to be mid 2020
The above capacity increasing, ramp metering, interchange improvement, and interchange construction projects are located on the routes, in the cities, and in the counties that experience the most congestion in District 10. It is expected that the projects will help increase the Vehicle Miles Traveled while reducing congestion and delay as the population and demand in District 10 grows over the next 10 years.
The next section of this report summarizes the District 10 2018 first quarter Quarterly Mobility Statistics.
2 0 1 8 Q l Quarterly Mobility Statistics - District 1 0
D a t a may change in coming months d u e to on-going data reconciliation process
M e a s u r e G r a p h P e r c e n t a g e C h a n g e
V e h i c l e M i l e s
o f T r a v e l
Miles (Billions) 2
1
0
2017 Ql 1.2
2017 Q4 2018 Q1 1.4
Over one year ago
13.2%
Over last quarter
T o t a l V e h i c l e
H o u r s o f
D e l a y (VHD)
a t 35 m p h
2017 Q1 82.6
2017 Q4 150.7
2018 Q1 207.5
Hours (Thousands) 250
200
150
100
50
0
Over one year ago
151.2%
O v e r last quarter
37 .7%
A v e r a g e Non-
H o l i d a y
W e e k d a y
V e h i c l e H o n r s
o f D e l a y
( V H D ) a t 35 m p h
2017 Q 1 1105
2017 Q4 2181
2018 Q1 2900
Hours 3.500 3.000 2.500 2.000 1,500 1.000
500 0
Over one year ago
l 6 2 . 5 %
O v e r last quarter
3 3 %
T o t a l V e h i c l e
Hours o f
D e l a y ( V H D )
a t 60 m p h
Hours (Thousands) 900 800 700
500
300 200 100
c
2 0 1 7 236.8
2017 Q4 595.6
2010 Q1 780.7 Over one year ago
163 .1%
O v e r last quarter
3 1 . 1 %
A v e r a g e Non-
H o l i d a y
W e e k d a y
V e h i c l e H o u r s
o f D e l a y
( V H D )
a t 60 m p h
2018 Q1 11 2017 Q4
9
Hours (Thousands)
2017 Q1 i
12
10
8
6
2
C
O v e r one year ago
l 6 4 . 6 %
O r v e r last quarter
29.7%
M e a s u r e
D a t a m a y c h a n g e i n c o m i n g m o n t h s d u e to o n - g o i n g d a t a r e c o n c i i l i a t i o n p r o c e s s
Graph
A v e r a g e V e h i c l e H o u r s
o f D e l a y b y D a y o f W e e k
a t 60 mph
Ho 16
11
12
10
8
6
1
2
0
urs (Thousands)
2017Q1 •2017 Q4 •2018 01
M o n Tue W e d Thu Fri Sat Sun/Hol
Largest Magnitude Decrease over one year
ago
Largest Magnitude Increase over one year
ago
Monday 271.6%
Largest Magnitude Decrease orer last
quarter
T h u r s d a y -2.9%
Largest Magnitude Increase year last
quarter
M o n d a y
A v e r a g e V e h i c l e H o u r s
o f D e l a y b y H o u r o f D a y
a t 35 m p h , W e e k d a y s
HOU 600
500
400
300
200
100
0 1 2 3 1 5 6 7 8 9 1011 121314151617181920 21 22 23
Hour of Day
Weekday (2017 Q1) Weekday {2017 Q4) Weekday (2018 Q1)
Largest Magnitude Weekday Decrease over
one year ago
10 A M -36%
Largest Magnitude Weekday Increase over
one year ago
:6 A M 656.2%
Largest Magnitude Weekday Decrease
O v e r last quarter
5 P M -21.2%
Largest Magnitude Weekday Increase over
last quarter
6 AM
A v e r a g e V e h i c l e H o u r s
o f D e l a y b y H o u r o f D a y
a t 35 m p h , S a t u r d a y s
Hour 140
120
10O
80
60
40
20
0 0 1 2 3 4 5 6 7 8 9 1011 1213111518171819 20212223
Hour of Day
Saturday (2017 Q 1 ) Saturday (2017 Q 4 ) Saturday (2011 Q 1 )
Largest Magnitude saturday Decrease over one year ago
10 A M -80%
Largest Magnitude Saturday Increase over
on* year ago
6 AM 1989.7%
Largest Magnitude Saturday Decrease
O v e r last quarter
3 P M -52%
Largest Magnitude Saturday Increase over
last quarter
i A M
A v e r a g e V e h i c l e H o u r s
o f D e l a y b y H o u r o f D a y
a t 35 m p h , S u n d a y s / H o l i d a y s
Hours 120
100
80
60
10
20
0 0 1 2 3 4 5 6 7 8 9 101112 131415 16 1718 1920212223
Hour of Day
Sunday/Holiday (2017 Q 1 ) Sunday/Holiday (2017 Q1) Sunday/Holiday(2017 Q1)
Largest Magnitude Sun.Holiday Decrease
over one year ago
1 P M -85%
Largest Magnitude Sun. Holiday Increase
over one year ago
7 A M 2070,8%
Largest Magnitude Sun. Holiday Decrease
O v e r Iast quarter
1 P M -17.2%
Largest Magnitude Sun. Holiday Increase
over last quarter
7 A M
D a t a may c h a n g e i n c o m i n g m o n t h s d u e to o n - g o i n g d a t a r e c o n c i l i a t i o n p r o c e s s
M e a s u r e Graph Percentage Change
T o t a l V e h i c l e H o u r s o f
D e l a y ( V H D ) b y C o u n t y a t 35 m p h
Hours (Thousands) 160
140
120
100
60
0
• 2017 Q1 2017 Q 4
• 2018 Q1
Largest Magnitude Decrease over one year
ago
M a r i p o s a - lOO%
Largest Magnitude Increase over one year
ago
S a n J o a q u i n 102.2%
Largest Magnitude Decrease over last
quarter
S t a n i s l a u s -25.1%
Largest Magnitude Increase over last
quarter
S a n J o a q u i n 9 6 . 8 %
A v e r a g e N o n -H o l i d a y
W e e k d a y E q u i v a l e n t L o s t L a n e
M i l e H o u r s a t 35 mph
• 2 0 1 7 Q1 2 0 1 7 Q1
• 2 0 1 8 Q1
A M Peak Off-Peak Day P M Peak Off-Peak Night (6 A M to 1 0 A M ) (10 A M to 3 P M ) (3 P M to 7 P M ) (7 P M to 6 A M )
Miles
6
5
i
3
2
1
0
Largest Magnitude Decrease over one year
ago
Largest Magnitude Increase over one year
ago
A M P e a k 713.9%
Largest Magnitude Decrease over last
quarter
P M P e a k -15.8%
Largest Magnitude Increase over last
quarter
A M P e a k 149.3%
A v e r a g e N u m b e r o f
G o o d a n d B a d D e t e c t o r s
2,500
2,000
1.500
1 .000
500
0
Number of Detectors
Average of Good Average of Bad
2 0 1 7 Q1 2 0 1 7 Q4 2 0 1 8 Q1
Change IN G o o d over one year ago
35%
Change in Bad over one year ago
-8%
Change IN Good over last quarter
13%
Change in End over Iast quarter
-10%
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Uata Jilli)' change in coming months due to on-going reconciliation process
Conge stion. by Route
Ve'hl ci 8 Hours or Del ay a t 35mDh
D lffllra,nce 2018 (U-2017 QI
Dll't9renes 2013 Q1I-:2017 Q4 IRa·nk
Rout& coun.tv 2.1117Q1 20UQ4 201!11, Q1 Allsol'ute Peroecnta.ae Absolute Pen:en taj!le W 17Q1 2017 Q4 20111 QI
1205 S an .Jn ,':al!"II In 11~"2-2 154421.4 203735.6, 84183,4 70% 49314 32% 1 1 1 1500 S an Joaa.Jln 422A6,.8 14743..4 544!!1.8, 12235 29% 39,738, 27□% 3 5 2
SR:99 StanlSlaus 2946..3 = . 9 3=._7 27957,4 950% C13 ,8'911l -31% 5 2 3 SR:99 San "'""' In 68696 42712-4 23707.3 -45188.7 -66,% (19 0051 -44% 2 3 4
SR132 Slan.lSlaus □ 243~..2 20244..3 20244.3 (4 150l 0 17% 4 5 IS S an .1n.an ,In 960-4 7653.6 6653.5 7693.1 822% 1 200, 16% 7 6 6
SR4 S an "'""' In 3.20 359..7 5905 5585 17,15,% 5515 1~15% 9 9 7 SR219 Slan.lSlaus 3521.8, 32511.,4 3 100 -421.8, -12% ( 158) '5% 4 7 8 SR99 Meroed 15'51.6, 1618 .7 1277.3 0274.3 -18,% 1341) -21% 6 6 9
SR165 Meroed 0 □ .::!1116 .. 3 .306 .. 3 3□6 1ll SIR120 S an "'""' In 2112~6 355 227 24,4 12% { 128) '36% 10 1 □ 11 SR132 S an .1n.an IIn 476..1 8 .6, 214 .1 -262 -65,% 206 2'39□% 6 11 12
IS StanlSlaus 11 .2' □ 26..7 15 .5 138,% 27 12 13 SIR152 Meroed 9..5 □ 15. 9 6jl 6,7% 16 13 14 SRM Amador □ □ 3 ,4 3 ,4 3 15
IS Meroed □ □ [I □, -SIR104 Arnallor D o, [I o, -SIR1D!I Tuolumne □ □, [I □, -SIR12 S an -" ' '"'" 'In □ 0 .2 [I □, m, -1 □□% 12
SIR120 Tuolumne D □ [I o, -SR49 Mannasa 25 □ [I -25, - 1□□% - 11
'IOT.'\IS 24-0.720 1!14~!1I ;J,s;;J,,1132 H2~I2 46..711. 58.65! 19JI~