Local Traffic Management. Tools for local agencies

Transcription

1 Local Traffic Management Tools for local agencies

2 Overview: How to assess impacts of new road opening How to assess impacts of a large, special event How to manage traffic signal systems

3 Elkhart County

4 How to assess impacts of new road opening CR17 Extension: 4-lane divided roadway replacing 2-lane standard county road

5 Toll Road CR17 Traffic Study Before and After 4-Lane Extension Elkhart CR17 Goshen

6 Toll Road CR17 Traffic Study Before and After 4-Lane Extension Elkhart Existing Section CR17 Questions: What are traffic impacts of improved access after construction of new section More traffic? Route changes? New Section CR38 Goshen Manufacturing and Commercial areas CR40

7 CR17 Traffic Study Before and After 4-Lane Extension Completed with: Tube counters Radar counter Bluetooth data collectors

8 Bluetooth Matching CR17 Traffic Study Before and After 4-Lane Extension Bluetooth: a wireless protocol utilizing short-range communications technology facilitating data transmission over short distances from fixed and/or mobile devices MAC Address: a 48 bit (>28 trillion) unique address assigned to a device by its manufacturer. Matches are anonymous, like license plate matching.

9 Toll Road CR17 Traffic Study Before and After 4-Lane Extension Elkhart CR17 Study Area Goshen

10 CR17 Traffic Study Before and After 4-Lane Extension ADT at select locations Before and After Opening of New Section (2011 vs 2012)

11 CR17 Traffic Study Before and After 4-Lane Extension ADT at select locations Before and After Opening of New Section (2011 vs 2012) CR 38 ADT ADT YEAR Even with new road open, just back to 2006 levels at main crossing

12 D E CR17 Traffic Study Before and After 4-Lane Extension F Bluetooth Origin-Destination Study 34% G Before New Section Complete (2011) Route Splits of Vehicles Passing Thru Point E and SR119 ( G ), CR38 ( H ) & CR40 ( I ) 57% H % I

13 D E CR17 Traffic Study Before and After 4-Lane Extension F Bluetooth Origin-Destination Study Route Splits of Vehicles Passing Thru Point D and SR119 ( G ), CR38 ( H ) & CR40 ( I ) 26% G 67% H % I

14 D E CR17 Traffic Study Before and After 4-Lane Extension F Bluetooth Origin-Destination Study 13% 27.5% Route Splits of Vehicles Passing Thru Point D and SR119 ( G ) 59% G H 2012 I

15 D E CR17 Traffic Study Before and After 4-Lane Extension F Bluetooth Origin-Destination Study Route Splits of Vehicles Passing Thru Point D and CR38 ( H ) 24.6% G 72% 3.4% H 2012 I

16 D E CR17 Traffic Study Before and After 4-Lane Extension F Bluetooth Origin-Destination Study Route Splits of Vehicles Passing Thru Point D and CR40 ( I ) G 15.8% 31.6% H 52.6% 2012

17 How to asses impacts of large, special event Elkhart County 4-H Fair: Are visitors to event being well served by transportation infrastructure? How are they getting to/from the fair? Can improvements be made? Daily Attendance Average Daily Attendance = 27,200 Total for week = 245,000 Attendance /20 7/21 7/22 7/23 7/24 7/25 7/26 7/27 7/28 Date

18 Fairs have a historic place in traffic engineering Dr. Greenshields measured cars going to the Ohio State Fair in 1933 with a camera system to develop first traffic flow theory.

19 Toll Road Elkhart County Fair Elkhart CR17 Fairgrounds Goshen

20 Vehicle Counts Data Collection Time Lapse Camera Travel Time Origin/Destination Device Deployment

21 Data Collection Bluetooth Case Fair Road Tubes Device Deployment

22 Data Collection Parking Time Lapse Cameras Device Deployment

23 Fair Traffic Directional Splits Findings 4% at CR 17 and CR 18 44% 65% 30% 6% 5% 10% 5% Origin/Destination

24 Traffic to/from West Findings 55% 25% 20% 19% 6% Signed Route to/from Fair Origin/Destination

25 Traffic to/from South Findings 50% Traffic to/from south evenly uses east and west approaches 50% Origin/Destination

26 Peak Inbound Hour (7-21) (vehicles per hour) Findings Peak inbound hour is typically 4:45 5:45 PM, earlier on weekends Traffic Counts

27 Peak Outbound Hour (7-21) (vehicles per hour) Findings Peak outbound hour is typically 9:00 10:00 PM, later on weekends Traffic Counts

28 250 CR 34- US 33 TO LOGAN ST. Findings 200 Traffic Flow Vehicles Per 15 Minute Period /21 WB 7/21 EB :00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Time Travel Time Travel Time (s) Outbound Inbound 0 0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 0:00 Time of Day Traffic Flow

29 250 CR 34- US 33 TO LOGAN ST. Findings 200 Traffic Flow Vehicles Per 15 Minute Period /21 WB 7/21 EB :00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 Time 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Traffic backups shown as reduction in flow and increase in travel time 900 Travel Time Travel Time (s) Outbound Inbound 0 0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 0:00 Time of Day Traffic Flow

30 250 CR 34- US 33 TO LOGAN ST. Findings 200 Traffic Flow Vehicles Per 15 Minute Period /21 WB 7/21 EB :00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 Time 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Outbound flow also restricted at peak release time 900 Travel Time Travel Time (s) Outbound Inbound 0 0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 0:00 Time of Day Traffic Flow

31 Findings 6:58 Average of 6 cars parked per minute (approx. 360 cars per hour) per parking crew Peak daily inbound flow is approx. 700 cars per hour 6:59 Time Lapse

32 Findings Video Time Lapse

33 Potential Impact of New Link to CR36 Using 7/21 Peak Hours as Example Suggestions Current Peak Hour Potential Peak Hour Potential to reduce traffic on CR34 by ~10% Based on origin/destination study: new link traffic estimated to gain all CR31 traffic, as well as half of southbound traffic now using CR34 to US33. Numbers are just to give idea of relative potential, actual usage will depend on many factors including visitor knowledge of route and signage. Link to CR36

34 Link to CR36 Link to CR36 has potential to reduce traffic on CR34 toward Goshen by ~ 10% Good signage and dissemination of information to public about the new route will help it to succeed Suggestions Signed Alternate Route to Fair using CR38 Only 6% of people going to/from fair from the west use signed route along CR38. 55% 25% 20% 19% Signed Route to/from Fair 6% Observations

35 CR34 (Monroe Street) CR34 will still see bulk of traffic, dealing with traffic issues there will remain important CR34 is not at theoretical capacity Conflicting traffic movements and backups from parking lots reduce this capacity Left turn s into parking lots Right turn s waiting to enter fair grounds backing onto CR34 during peaks Blackport Road Slow vehicles and pedestrians Suggestions CR34 Improvements

36 Suggestions CR34 (Monroe Street) No place to pass slow vehicles Traffic turning left into parking lots can t be passed Occasional right turn traffic into parking lots spills back to road Right turn lane to Gate 5, may need more lanes like this at Gates 1 and 2 CR34 Improvements

37 CR34 (Monroe Street) Selective Areas of Widening Suggestions Blackport Blister to allow passing of left turn traffic at Gate 1 Right turn lane at Gate 2 Position permit checkers at distance from CR34 to keep queues from backing up To CR34 Future option: Re-align Gate 1 with Blackport CR34 Improvements

38 CR34 (Monroe Street) Selective Areas of Widening Suggestions Blister to allow passing of left turn traffic at Gate 5 CR34 Improvements

39 CR34 (Monroe Street) Add 10 (min) Shoulders Along Fairgrounds Suggestions Shoulders on both sides of CR34 Shoulders provide: space to pass turning and slow vehicles room for emergency vehicles to bypass traffic effective right-turn lanes near gates CR34 Improvements

40 Traffic Signal Performance Measures Originally developed for use by INDOT Adapted to local agencies through an LTAP project Primarily 7 basic measures to help ensure signals are operating well engineering level analysis tools Coordination Cycle timings Volumes Split Failures Etc

41 2003 Performance Measure Evolution 2006 Central System 2011 Procurement Specification Exceptional (6) Highly Favorable (5) After 2010 Favorable (4) Random (3) 2008 UnFavorable (2) Before Poor (1) 00:00:00 04:00:00 08:00:00 12:00:00 16:00:00 20:00:00 00:00:00 Time of Day

42 How Current PM Systems work: Replace second cabinet/hardwired logging system With a smart controller

43 Performance Measures Elkhart County, IN Even Useful on a Small System 15 miles of fiber optic along CR17 14 county signals on fiber network 4 INDOT signals on fiber network 1 microwave link 4 signals on broadband radio 7 signals with no data connection 1 Centracs system 10 FLIR thermal sensors 3 full time linux bluetooth stations 5 PTZ cameras

44 Performance Measures Elkhart County, IN Even Useful on a Small System CR17 15 miles of fiber optic along CR17 14 county signals on fiber network 4 INDOT signals on fiber network 1 microwave link 4 signals on broadband radio 7 signals with no data connection 1 Centracs system 10 FLIR thermal sensors 3 full time linux bluetooth stations 5 PTZ cameras

45 Free Op. C=75 C=90 Cycle Length Plan Change At 0500 Plan Change At 1300 Plan Change At 2000

46 Cycle Length

47 Cycle Length

48 Cycle Length 60 Cycle Lengths Mismatched 75

49 Performance Measures Next Step: Adapt Performance Measures, now mostly Engineering Analysis Tools, to Maintenance functions. Possibilities include: Detection Failures Changes in traffic patterns arrival on green change in volumes on an approach Loss of communication

50 This research sponsored by: