Smarter Work Zones Overview of DLM Systems. Efficiency through technology and collaboration

Transcription

1 Smarter Wrk Znes Overview f DLM Systems Efficiency thrugh technlgy and cllabratin

2 Smarter Wrk Znes OVERVIEW 2

3 What are Smarter Wrk Znes? Innvative strategies designed t ptimize wrk zne safety and mbility Plicies and practices used t incrementally and cntinuusly imprve WZ peratins Tls t reduce WZ crashes and delays Tls t enhance WZ management strategies 3

4 What are Smarter Wrk Znes (cnt.)? Prject Crdinatin Crdinatin within a single prject and/r amng multiple prjects within a crridr, netwrk, r regin, and pssibly acrss agency jurisdictins Technlgy Applicatins Deplyment f Intelligent Transprtatin Systems (ITS) fr dynamic management f wrk zne traffic impacts, such as queue and speed management Tday s Fcus 4

5 Types f Technlgy Applicatins Include Real-Time Traveler Infrmatin Queue Warning Dynamic Lane Merge Incident Management Variable Speed Limits Autmated Enfrcement Entering/Exiting Cnstructin Vehicle Ntificatin Perfrmance Measurement Fr mre infrmatin check ut the SWZ TA website 5

6 Several States are already Utilizing SWZ! Over 40 states have implemented technlgy applicatins, including: Frmalizing prcesses fr planning and perating technlgy applicatins Implementing n-call reginal ITS SWZ cntracts Implementing steps twards institutinalizing technlgy: Develping systems engineering dcuments Develping specs t bid n technlgy Pilting technlgy applicatins Evaluating pilt t determine effectiveness fr wider implementatin Fully implementing technlgy applicatins Utilizing prject funds t implement ITS leading t institutinalizatin 6

7 Why Implement SWZ? Capabilities f Technlgy Applicatin Imprved driver awareness Changing traffic patterns Dwnstream cngestin Cnstructin vehicle ingress/egress Expected delay / travel time Dynamic and actinable guidance t drivers Rad wrk ahead vs Traffic Stpped 1 mile ahead Rad wrk expect delays vs. Rad Wrk I-95 past Exit 52 Use Alternate Rutes Enhanced tls fr n-site traffic management Speed mnitring Autmated speed enfrcement Queue frmatin 7

8 Why Implement SWZ? Benefits f Technlgy Applicatin Empwers drivers t be practive in respnding t wrk znes Awareness f dwnstream hazards Facilitates real-time decisin-making and trip planning Streamlines traffic management functins thrugh partial autmatin Speed enfrcement Data cllectin Perfrmance measurement Infrmatin increases custmer satisfactin The Mre yu Knw 8

9 Smarter Wrk Znes DLM SYSTEMS 9

10 Dynamic Lane Merge (DLM) Overview What is it? Systems that encurage mtrists t merge at specific pints as they apprach a lane clsure, depending n current perating cnditins Systems alternate merging strategies (early and late merge) Hw des it wrk? Uses technlgy (e.g., sensrs) t mnitr real-time traffic characteristics Cnveys instructins thrugh prtable changeable message signs (PCMS) placed in advance f a lane clsure Uses site-specific algrithm Detects a change in traffic cnditins (e.g., changes in speed, density, and ccupancy) t switch merge strategies Prvides lane use instructins t drivers 10

11 DLM Strategies Early Lane Merge Often used in lw-vlume cnditins Reduces the ccurrence f high-speed merging at the pint f lane clsure Late Zipper Lane Merge Often used in high-vlume cnditins Reduces the length f the queue 11

12 Early Lane Merge Advises drivers t mve ut f clsed lane well befre the frced merge pint Wrks best when there is a lw traffic vlume cmbined with high average speeds Benefits: Reductin f aggressive driving and unsafe merge maneuvers Prvide significant advanced warning t allw drivers adequate distance t merge Gives psitive instructins n lane usage Surce: Surce: Minnesta DOT 12

13 Late Lane Merge Advises drivers t use bth lanes up t the merge pint Wrks better fr high traffic vlumes, situatins where queueing upstream f wrk zne is expected t ccur Benefits: Maximize available strage upstream f wrk zne fr reducing ttal queue length. Reduces cnfusin between drivers wh think they shuld merge early vs. drivers that use pen lanes as far as pssible. Clarifies right-f-way at merge pint ( alternate merge ) Surce: Hallmark, Mudgal, Stut, & Wang, 2011 Surce: 13

14 Implementing DLM Where? Mst useful in wrk znes experiencing fluctuating traffic demands Hw? Techniques used t implement DLM: Micrwave signals t identify traffic vlume Vide analysis t track traffic vlume, lane ccupancy, and queue Dppler radar t determine average speed Pneumatic tubes t calculate traffic vlume Cmputer simulatins t ptimize dynamic merging algrithms Hw Much? Csts vary based n detectin technlgy, number f PCMS, and prduct manufacturer 14

15 DLM Cnsideratins Cnsideratins prir t implementing a DLM system: Sign placement Rad gemetry, expected queue length, and average expected speed Driver awareness with radway Entrance/exit ramp prximity t merging area Plice enfrcement Prven useful, especially with early merge Fcus n reducing aggressive, nn-cmpliant drivers Outreach methds Driver cnfusin and steep learning curve Public infrmatin campaigns n lane clsures and hw DLM systems wrk Cnsideratins during implementatin: Ensure signs are displaying reasnable messages Engage in real-time sign feedback 15

16 Benefits f Using DLM Reductins in speed differentials between pen lanes in advance f the lane clsure Reduced driver frustratin by creating a sense f fairness Reductin in queue lengths Reductin in wrk zne delays 16

17 Examples f DLM Signage Early Lane Merge DO NOT PASS/WHEN FLASHING Late Lane Merge Dynamic Signage STAY IN YOUR LANE / MERGE AHEAD USE BOTH LANES / TO MERGE POINT TAKE YOUR TURN / MERGE HERE SLOW TRAFFIC AHEAD / USE BOTH LANES STAY IN YOUR LANE / MERGE AHEAD XX MILES TAKE YOUR TURN / MERGE HERE USE BOTH LANES STOP TRAFFIC AHEAD MERGE HERE TAKE TURNS Deplyment may als include passive/nn-activated mde fr when merge strategy is n lnger necessary Example: Other Signage LEFT (r RIGHT) LANE CLOSED / XX MILES AHEAD LEFT (r RIGHT) LANE CLOSED 17

18 Examples f Dynamic and Supprting Signs Dynamic Signage Other Surce: 18

19 Additinal DLM Resurces Guidance Guidance fr the Use f Dynamic Lane Merging Strategies SWZ Webinar Series Webinar #6: Technlgy Applicatin Case Studies: Variable Speed Limit and Dynamic Lane Merge Descriptin Descriptin f a Late Merge System by MnDOT Deplyment Evaluatin Evaluatin f MnDOT Deplyment Evaluatin f MD SHA Deplyment Evaluatin f FDOT Deplyment 19

20 Implementatin Guidance Wrk Zne ITS Implementatin Guide Prvides guidance n implementing ITS in wrk znes t assist public agencies, design and cnstructin firms, and industry stakehlders Presented thrugh a 6-step Systems Engineering Apprach t WZ ITS implementatin Available fr dwnlad at: ns/fhwahp14008/fhwahp14008.pdf Surce: FHWA 20

21 Implementatin Guidance Wrk Zne ITS Implementatin Guide Steps Assessment f Needs Cncept Develpment & Feasibility Detailed System Planning & Design Prcurement System Deplyment Applies t any WZ ITS deplyment regardless f scale System Operatin, Maintenance, and Evaluatin 21

22 Smarter Wrk Znes RESOURCES 22

23 Funding Opprtunities State Transprtatin Innvatin Cuncils (STIC) Incentive Prgram Funds activities which turn innvatins int standard practices All states are eligible Up t $100,000 available t each STIC annually Can be used t fund multiple initiatives Use t pay cnsultants t develp standards, specificatins, design manuals, evaluatins, implementatin plans, wrkshps, training, and mre! Accelerated Innvatin Deplyment (AID) Demnstratin Prgram Prjects may be any aspect f highway transprtatin Max f $1,000,000 (up t full cst f prject) Mnitring, assessment, and technlgy transfer cmmitments Current grants include ABC, high surface frictin treatments, and ATMS/A. ing/grants/ 23

24 Visit FHWA s SWZ Interactive Tlkit Surce: FHWA 24

25 Utilize Varius Learning Opprtunities! In-Persn Wrkshps Virtual Peer Exchanges In-Persn Peer Exchanges Demnstratin Site Visits Free educatinal pprtunities are available! Cntact Jawad Paracha fr mre infrmatin 25

26 Fr Mre Infrmatin: SWZ Initiative Leader Jawad Paracha FHWA Office f Operatins (202) Jawad.Paracha@dt.gv Technlgy Applicatins Tdd Petersn FHWA Office f Operatins (202) Tdd.Petersn@dt.gv Prject Crdinatin Martha Kapitanv FHWA Office f Operatins (804) Martha.Kapitanv@dt.gv 26