Compar ing Waze and T MC Data Aug ust 25, 2020 Chie f, T MC Ope - - PowerPoint PPT Presentation

Aug ust 25, 2020 Jason Dic e mbr e

Chie f, T MC Ope ra tio ns, MDOT SHA Offic e o f T ra nspo rta tio n Mo b ility & Ope ra tio ns (OT MO)

Be njamin Pe c he ux

Dire c to r o f I nfo rma tio n Re se a rc h, AE M Co rpo ra tio n

Compar ing Waze and T MC Data

Re sponse T ime Curre nt T MC Struc ture

• Numbe r of E

ve nts pe r Month, Da y, Hour

• ~ 114,000 E

ve nts in 2019 (SHA o nly)

• 28,160 la ne b lo c king inc ide nts
• 32,427 disa b le d mo to rists
• 41,161 wo rk zo ne s
• Re sponse T

ime ~ 10 min

• T

ime fo r a CHART Unit to a rrive o n sc e ne

• L

a ne Cle a ra nc e T ime ~ 32 min

• T

ime to o pe n a ll tra ve l la ne s

• Inc ide nt Cle a ra nc e T

ime ~

• T

ime fo r a ll re so urc e s to c le a r the sc e ne

• T

his g e ne ra lly c o rre spo nds to a ll o the r a g e nc y a nd SHA re so urc e s b e ing c le a r, b ut no t a lwa ys

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By the Numb e rs

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Wha t is the “Wa ze ” F a c to r?

How many e ve nts doe s Waze add 114,000 e ve nts + W = T

• ta l E

ve nts How many Waze e ve nts duplic ate T MC? “E xte rna l E ve nt” o ve rlo a d is a ma jo r c o nc e rn

F e b 2020 – Be g a n a rc hiving Wa ze da ta Ma r 2020 – Sna pping Sta te ’s L RS with Wa ze la t/ long

• Pre limina ry sta tistic s o n

fre q ue nc y o f Wa ze e ve nts

Jun 2020 – Inte rme dia ry F inding s

• Cha ng e in Wa ze a le rts re fle c ts

c ha ng e in tra ve l within the Sta te

• T

he re a re Wa ze e ve nts tha t pre c e de T MC e ve nts.

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Ana lysis T ime line

MDOT CHART

WAZE

• 104K

Wa ze da ta pulls =8.3M “e ve nt sta te s” =1.9M Wa ze e ve nts.

• F
• c us o n Wa ze c ra she s
• 12,765 ma jo r c ra she s.
• 17,230 mino r c ra she s.
• 23,563 unc la ssifie d.

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F re q ue nc y a nd T ype o f Wa ze E ve nts

Individual Cr ash E ve nts fr

• m Waze

01.27.2020 – 06.19.2020

Ma jo r Cra sh Mino r Cra sh Unc la ssifie d Cra sh

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Wa ze Da ta Re fle c ts De ma nd Cha ng e

14 12 10 8 6 4 2

Waze Unique Ale r ts (thousands)

J19 J26 F2 F9 F16 F23 M1 M8 M15 M22 A5 A12 A19 A25 M3 M10 M17 M24

Ac tivity r e str ic tions fr

• m

Mar 15 onwar ds r e duc e d:

• Re g io na l tra ve l
• Re g io na l c ra sh fre q ue nc ie s
• T

he numb e r o f Wa ze re po rts (limite d c o ng e stio n re duc e s ne e d fo r Wa ze )

• T

he numb e r o f “a c c ide nts” a nd ha za rds. Compar ative analyse s will r e fle c t dampe ne d Waze value .

Cale ndar We e k (Januar y 19 – Mar 24)

• T

wo le ve ls o f ma tc hing e xplo re d:

• Ma tc hing ma de b y +/ - 30 minute s, +/ - 0.5 mile s,

a nd by Waze type.

• Ma tc hing ma de b y +/ - 30 minute s, +/ - 0.5 mile s,
• n all Waze type s.
• F
• c us spe c ific a lly o n T

MC “Co llisio n” type ma tc hing with Wa ze “Ac c ide nt” da ta .

• 2,951 T

MC re po rte d c o llisio ns a nd 42,425 Wa ze re po rts o f a c c ide nts = ma ny ma tc he s.

• Wa ze e ve nts o n a rte ria ls in so uthe rn

Ma ryla nd a nd e lse whe re with T MC e ve nts

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Wa ze e ve nts ma tc hing to T MC E ve nts

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Count Time Difference (minutes) Count Time Difference (minutes) I-95 102 778 83 -8.4 345

• 7.0

I-695 94 461 92

• 2.1

161

• 4.4

I-495 86 260 70

• 10.1

158

• 10.5

I-270 41 198 33

• 9.9

76

• 7.6

I-70 28 148 24

• 9.2

43

• 7.7

US 50 20 180 13

• 4.7

47

• 4.6

I-83 19 75 11 0.3 21

• 1.4

I-97 10 72 9

• 13.6

17

• 8.4

I-795 5 29 3

• 0.3

5

• 0.5

MD 100 4 25 2 1.1 4

• 0.8

I-81 3 19 3

• 5.2

10

• 9.9

MD 32 2 7 1

• 4.5

2

• 4.0

MD 200 1 14 1

• 25.0

2

• 4.3

Waze "Accident" Report Match with TMC Collison Report Any Waze Report Match with TMC Collison Report Roadway Waze Major/Minor Report Count TMC Collision Report Count

* No te : T he se a re pre limina ry re sults; the re ma y b e impe rfe c t ma tc hing due to L RS impre c isio ns

Pre limina ry Ana lyse s: F re e wa ys

• US-50 – I

mpre c ise ma tc hing o n Wa ze ro a d-a le rt type s:

• Co uld impro ve de te c tio n time ,
• n a ve ra g e , b y 5 minute s
• Co uld impro ve de te c tio n time

b y a s muc h a s 20 minute s.

• T

he re a re Wa ze e ve nts tha t tra il T MC e ve nts.

• T

he re a re T MC c o llisio n e ve nts no t in Wa ze e ve nts.

• T

he re a re Wa ze e ve nts no t in the T MC c o llisio n da ta .

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De e pe r Dive : US 50 – All Wa ze E ve nts

• 30
• 25
• 20
• 15
• 10
• 5

5 10 15 20 25

Waze Re por ts pr e c e de or T r ail T MC Collision Re por t (minute s)

Count of Unique Waze UiD

5 4 3 2 1

• Pre c ise ma tc hing o n US-50

b e twe e n T MC c o llisio n a nd Wa ze a c c ide nt type ma y:

• I

mpro ve de te c tio n time b y 5 minute s o n a ve ra g e ,

• I

mpro ve de te c tio n time b y a s muc h a s 20-minute s.

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De e pe r Dive : US 50 – “Ac c ide nt E ve nts”

• 20
• 16
• 12
• 8
• 4

4 8 12 16

Count of Unique Waze UiD

3 2 1

Waze “Ac c ide nts” pr e c e de or T r ail T MC Collision Re por t (minute s)

Re sponse T ime Curre nt Cro wdso urc e Da ta Use s

AT MS Ca lc ula te s e stima te d que ue ba se d on ve hic le probe da ta

Wa ze T ra ffic Vie w T

• o l

a llo ws c usto m ro ute s to mo nito r o f re a l-time pe rfo rma nc e fo r e a rly de te c tio n o f inc ide nts a nd ro utine tro ub le spo ts.

Re sponse T ime Prima ry Cro wdso urc e d Da ta Use

T he prima ry g o a l is to improve inc ide nt de te c tion Se c o nda ry g o a l is to impr

• ve ve r

ific ation

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Wa ze I mpro ve s I nc ide nt T ime line

Re sponse T ime Use Cro wdso urc ing Da ta to …

Save L ive s…

• 7/ 29/ 20 – 11pm fa ta l c ra sh a lo ng I
• 95 So uth a t MD 100. Wa s o rig ina lly a disa b le d

ve hic le in la ne 4 – no CHART T MC a wa re

• 8/ 13/ 20 – 5a m fa ta l c ra sh a lo ng I
• 695 E

a st prio r to MD 7. Wa s o rig ina lly a disa b le d ve hic le in la ne 2. CHART T MC no t a wa re . Sta te Po lic e ha d a re po rt fo r a disa b le d ve hic le a lo ng We st Bo und I

• 695 o ne e xit a wa y.

T he “what if” is wor th the inve stme nt

• Wa ze da ta c a n also he lp de te c t inc ide nts fa r mo re q uic kly o n se c o nda ry ro a ds

no t c urre ntly mo nito re d b y the CHART T MC.

• Mo re o ve r, the a na lysis o f a rc hive d Wa ze da ta will he lp CHART

ide ntify prio rity g a ps in mo nito ring tha t c a n b e o ve rc o me thro ug h I T S inve stme nts.

• Ana lysis o f a rc hive d Wa ze da ta will he lp CHART

a lig n/ e xpa nd sa fe ty se rvic e pa tro l ro ute s.

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Jason Dicembre

Division Chief - TMC Operations Maryland Department of Transportation State Highway Administration Office of Transportation Mobility & Operations (OTMO) 410-582-5650 jdicembre1@sha.state.md.us

Que stions?