LOUISIANA DOTD TRAFFIC MONITORING/DATA COLLECTION PROGRAM & UPDATES

Transcription

1 LOUISIANA DOTD TRAFFIC MONITORING/DATA COLLECTION PROGRAM & UPDATES George Chike, P.E. Traffic Data Collection & Management System

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3 DOTD FIELD CREWS Routine traffic volume counts Vehicle classification counts

4 ROUTINE TRAFFIC VOLUME COUNTS Also called Short Duration Counts 24-hour Counts for AADT greater than 5000, e.g. I hour Counts are acceptable for lower AADT roads Monitor state maintained routes 1700 sites per year are monitored per 3-year cycle Monitor each parish on a 3-year cycle as well

5 ROUTINE TRAFFIC CLASS COUNTS Also called Short Duration Class Counts 24-hour Counts for AADT greater than 5000, e.g. I hour Counts are acceptable for lower AADT roads Monitor state maintained routes 433 sites per year are monitored per 3-year cycle Monitor each parish on a 3-year cycle as well

6 ROUTINE TRAFFIC CLASS COUNTS Road tube placement

7 ROUTINE TRAFFIC CLASS COUNTS Vehicle Classifier Secured to a post

8 FHWA 13 Vehicle Classes ROUTINE TRAFFIC CLASS COUNTS

9 Six Major Vehicle Types ROUTINE TRAFFIC CLASS COUNTS *8, 9, & 10 may also be called Single Trailer Trucks.

10 Continuous Count System (CCS) or PATR - About 65 Permanent monitoring sites - Polled daily by telemetry - Malfunctions serviced asap

11 A Radar Site on I-55 Typical CCS

12 An Inductive Loop Site on LA-10 Typical CCS

13 An Inductive Loop Site on LA-1 Typical CCS

14 An Inductive Loop Site on LA-1 Typical CCS

15 General display of CCS Continuous Count System (CCS) Cont d

16 Upgrading PATR sites to Cellular Analog Modem Cellular Modem

17 Upgrading PATR sites to Cellular RTMS G4 Radar RTMS Sx-300 Radar

18 CCS (PATR) SITES

19 CONTRACTED SERVICES Blanket traffic volume and Ramp traffic counts Weigh-in-Motion (WIM) Program - new Traffic Data Management

20 BLANKET TRAFFIC VOLUME AND RAMP TRAFFIC COUNTS Monitor local roads not maintained by state Also considered as Short Duration (48-hour counts) Approximately 50,000 blanket stations statewide Started monitoring Interstate Exit Ramps in 2016* Each Ramp site monitored per 6-year cycle (48-hour count)* *This is a new program, we have some data but limited and not yet statewide

21 BLANKET TRAFFIC VOLUME AND RAMP TRAFFIC COUNTS 5,000 sites per year monitored per 10-year cycle Each Parish is monitored per 10-year cycle as well Work is performed by private contractors/consultants

22 SOME TRAFFIC DATA USES

23 Traffic Volume: Roads & Highway improvements Analysis of highway capacity & density Determination of highway LOS Determination of highway functional class Forecasting future traffic volumes Design of traffic control systems

24 VEHICLE CLASSIFICATION Pavement design Forecasts of travel by vehicle type Cost of vehicle operation Speed limit & oversize vehicle policy Safety conflicts due to vehicle mix Highway cost allocation

25 Truck Weight-in-motion Bridge design & loading Weight distance taxes or use fees Weight & standard enforcement Posting of load limits on bridges for safety Resurfacing forecasts Trends in freight movement Permit policy for overweight vehicle, e.g. fines

26 Familiar sight? Lack of enforcement will result in this

27 COMING SOON

28 TRAFFIC DATA INTEGRATION WITH ESRI ROADS & HIGHWAYS ESRI Roads and Highways (R&H) A linear referencing system for DOTD to integrate data from multiple linear referencing networks Traffic Server Comprehensive suite of application modules for DOTD to follow FHWA TMG procedures for the daily, monthly and annual traffic statistics reporting

29 STATIONS AND SEGMENTS Traffic Server uses concept of station records for count locations Station IDs Geometry Routes LRS ID Functional Class Segments etc.

30 STATIONS AND SEGMENTS CONT D Traffic Server uses the concept of segments to store data relating to a section of road with homogeneous traffic volume LRS section ID Start and end mile points Functional Class Number of lanes Directionality Speed etc.

31 DATA SYNCHRONIZATION R&H becomes authoritative source for all linear referencing information for Traffic Server stations and segments DOTD will decide which additional fields from R&H need to be synchronized with Traffic Server

32 TENTATIVE WORK FLOW ESRI Roads & Highways Event Editor We can change stations & segments in info. in R&H Admin. reviews and reconciles changes from everyone Admin updates base tables of R&H using data compression LRS Admin. detects and submits changes to Traffic Server Traffic Server receives and accepts changes Some of the changes will be real time and other changes will be periodic

33 WHAT TRAFFIC DATA

34 DOTD Website Mainframe

35 DOTD Website

36 Find a traffic DOTD Website

37 DOTD Website

38 DOTD Website

39 K & D Factors

40 DOTD ADJUSTMENT FACTORS DATA FROM DOTD TRAFFIC SERVER

41 SEASONAL FACTORS Monthly Month New RFC System Old RFC System January February March April May June July August September October November December 1R U U R U R U R U R

42 Daily, 24-Hour, 48-Hour SEASONAL FACTORS Daily Factors (2016 Calendar Year) 24 Hour Monitoring Factors 48 Hour Monitoring Factors New RFC System Old RFC System (1) Monday (2) Tuesday (3) Wednesday (4) Thursday (5) Friday (6) Saturday (7) Sunday (a) Monday (b) Tuesday (d) Wednesday {e} Thursday (f) Monday (g) Tuesday (h) Wednesday IR U U R U R U R U R

43 AXLE FACTORS Yearly Axle Factors (2016 Calendar Year) Axless RFC System per Vehicle Axle Factor 1 (1R) (3R) (4R) (5R) (6R) (7R) (1U) (2U) (3U) (4U) (5U) (7U) *New Road Functional System coded in green

44 2016 K & D Values Functional System 2016 Traffic Design Values by Functional System Monitoring Site Number Highest Hourly Volume Portion of Highest Hourly Volume to AADT AADT 20th Hour 30th Hour 50th Hour Design K20 K30 K50 Design vpd vph vph vph Hour K D th th th th th th th th K - The ratio of the design hourly volume to the annual average daily traffic (AADT). D - The portion of the traffic in the higher volume direction to the total traffic at the design hourly volume. AADT - Annual average daily traffic. K30 - The proportion of AADT occurring during the 30th highest hour of the design year (8760 hours).

45 Average Statewide Vehicle Percentages & AADT by Functional Classification For (1R) 02 (3R) 06 (4R) 07 (5R) 08 (6R) 09 (7R) 11 (1U) 12 (2U) 14 (3U) 16 (4U) 17 (5U) 19 (7U) Rural Urban Principal Arterial - Functional Class Principal Principal Principal Principal Minor Major Minor Other Minor Arterial - Arterial - Local Arterial- Arterial- Arterial Collector Collector Freeways/ Arterial Interstate Other Interstate Other Express Collector Local ways Vehicle Type 1 Cycles 0.42% 0.51% 0.31% 0.38% 0.49% 0.44% 0.90% 0.31% 0.28% 0.30% 0.36% 0.49% 2 Cars 47.02% 51.32% 56.14% 55.10% 50.23% 48.18% 44.19% 59.36% 64.66% 62.43% 56.58% 68.82% 3 2A-4T 23.29% 29.37% 30.86% 31.97% 35.25% 38.22% 27.67% 25.59% 27.10% 28.31% 32.02% 24.74% 4 Busses 0.94% 0.74% 0.56% 0.75% 0.83% 0.71% 1.32% 0.66% 0.58% 0.92% 1.34% 1.46% 5 2A-SU 5.48% 5.83% 5.13% 5.81% 8.06% 6.85% 9.13% 4.75% 4.13% 4.77% 5.93% 2.94% 6 3A-SU 0.54% 0.71% 0.60% 0.88% 0.78% 1.11% 0.51% 0.56% 0.46% 0.51% 0.65% 0.88% 7 4A-SU 0.05% 0.09% 0.08% 0.07% 0.03% 0.03% 0.07% 0.06% 0.08% 0.04% 0.23% 0.03% 8 4A-ST 5.69% 2.74% 1.51% 1.64% 1.92% 1.40% 3.01% 1.84% 1.14% 1.44% 1.47% 0.31% 9 5A-ST 14.65% 7.68% 4.11% 3.05% 2.07% 2.63% 12.26% 6.15% 1.29% 0.94% 1.08% 0.32% 10 6A-ST 0.66% 0.64% 0.55% 0.35% 0.31% 0.40% 0.47% 0.45% 0.25% 0.27% 0.29% 0.01% 11 SA-MT 0.75% 0.15% 0.09% 0.00% 0.00% 0.00% 0.22% 0.11% 0.01% 0.00% 0.01% 0.00% 12 6A-MT 0.35% 0.07% 0.03% 0.00% 0.00% 0.00% 0.14% 0.05% 0.00% 0.00% 0.00% 0.00% 13 7A-MT 0.17% 0.16% 0.02% 0.01% 0.02% 0.02% 0.12% 0.11% 0.02% 0.07% 0.04% 0.00% T = 28.34% 18.07% 12.12% 11.81% 13.19% 12.44% 25.93% 14.08% 7.38% 8.04% 9.70% 4.49% AADT T = truck

46 Truck Traffic Data on LA Highway System

47 NO. OF TRK TYPE Truck Traffic Data on LA Highway System TRUCK TRAFFIC DATA ON LA HIGHWAY SYSTEM Trk AADT No. of 5A-ST Trk -class 9 (1R&1U) TIME (YR)

48 NUMBER OF TRUCK GROUP VARIATION IN TRUCK TRAFFIC ON I-12 At CCS Station #21 on a Typical Friday, August 19, A-SU, 3A-SU, 4A-SU 4A-ST, 5A-ST, 6A-ST 5A-MT, 6A-MT, 7A-MT :00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00 TIME OF DAY (HR)

49 VMT DATA TRUCK VMT DATA ON LA HWY SYSTEM TRUCK VMT ON LA HWY SYSTEM Truck VMT 5A-ST class 9 (1R&1U) VMT Truck VMT A-ST class 9 (1R&1U) VMT TIME (YR)

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51 THANK YOU! (225) Office