EVALUATION OF AVERAGE EFFECTIVE VEHICLE …neite.org/Documents/Technical/ITE Tech Comm Queue...

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EVALUATION OF AVERAGE EFFECTIVEVEHICLE LENGTH IN QUEUE

New England Section ITE Technical Committee

PROBLEM STATEMENT

Intersection analysis summaries generally include three measures of effectiveness (MOE’s),including average delay, volume-to-capacity ratio and queue lengths per lane. The latter value,queue length, is essential to the design of storage lengths for each lane. This calculation, ifoverstated, often leads to overdesign resulting in unnecessary construction to provide the storage,and in turn significant cost implications.

Several methodologies are available to estimate queue length, both manual and electronic. Mostcommon are: 95th percentile queue, or “maximum queue”; and 50th percentile queue, or “averagequeue”. In either case, the calculation requires two steps, either directly or indirectly. First is theestimate of the number of vehicles in the queue. Second is the assignment of an averageeffective length per passenger car equivalent (pce). In years past, the assumption of 20 feet pervehicle was a standard, 25 feet per vehicle has become more accepted. The focus of this project,conducted by the New England Section of the Institute of Transportation Engineers (NEITE)Technical Committee, will be to identify an appropriate assumption for the average effectivelength of a passenger car equivalent in queue.

METHODOLOGY

The NEITE Technical Committee conducted observations to identify intersections that exhibitedthe following characteristics:

· Under traffic signal control· Lane(s) with queues of ten or more vehicles per signal cycle· Exclusive left turn lanes, if the left turn volume is heavy· Locations in urban and suburban communities

Eight intersections, four in urban and four in suburban locations, were selected for this project.In addition, all intersections consisted of four approaches. Aerial photos of the intersections areprovided in the appendix of this report. The intersections include:

Urban Locations

· Commonwealth Avenue at Babcock Street, Boston, MA· Massachusetts Avenue at Boylston Street, Boston, MA· Massachusetts Avenue at Beacon Street, Boston, MA· Boylston Street at Bowker Overpass, Boston, MA

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Suburban Locations

· University Drive at Amity Street, Amherst, MA· Fellsway East at Pond Street and West Wyoming Avenue, Stoneham, MA· Main Street at Spring Street, Medfield, MA· Salem Street at Maplewood Street and Lebanon Street, Malden, MA

Observers pre-marked distances from the STOP line with chalk, and for each cycle counted thenumber of vehicles in a queue while measuring the distance from the STOP line. The number offeet divided by the number of queued vehicles yielded the average storage length per vehicle forthat cycle.

A Queue was discarded if a bus or heavy vehicle was present within the first 8 vehicles of thequeue during a signal cycle.

Two observers were assigned to each intersection, with each responsible for two approaches.During a one-hour period each observer alternated fifteen minute periods between their twoapproaches.

ANALYSIS

Upon review of field sheets for accuracy, a common anomaly was noted. On several cycles itwas noted that vehicles did not queue as expected. Examples include the following:

· A vehicle would leave a space betweenthe automobile in front equal to a carlength for no apparent reason.

· A vehicle would leave a space betweenthe automobile in front equal to a carlength to avoid blocking a driveway.

· The lead vehicle in the queue wouldpull up significantly beyond the STOPline.

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· The lead vehicle in the queue wouldpull up significantly short of the STOPline.

In these cases a measurement from the STOP line to the end of the queue may not accuratelydescribe the storage length required for the number of vehicles counted. One thought would beto treat a space between vehicles as if it were occupied by another vehicle. Alternately, it couldbe assumed that these “anomalies” are actually commonplace and no adjustment would benecessary. It is also possible that, when considering all of the data, these anomalies will result inno significant difference. Unfortunately, these anomalies were noted after a review of collecteddata, and were not documented in sufficient detail to analyze with any significance. Inclusion ofthis factor might be considered in a follow-up study.

FINDINGS

Data will be stratified by each individual intersection, for Urban vs. Suburban locations, and forall eight intersections. Tables containing the raw collected data are included in Appendix A ofthis report.

Urban Locations

· Commonwealth Avenue at Babcock Street, Boston, MA

Figure 1 shows that the average queue length per vehicle is approximately 26 feet forvehicles traveling eastbound on Commonwealth Avenue, and 25 feet for vehiclestraveling westbound.

· Massachusetts Avenue at Boylston Street, Boston, MA

Figure 2 indicates that vehicles approaching on Massachusetts Avenue northboundand southbound are each averaging approximately 22 feet per vehicle. Boylston Streeteastbound traffic is approximately 23 feet per vehicle, while westbound is atapproximately 19 feet per vehicle.

· Massachusetts Avenue at Beacon Street, Boston, MA

Figure 3 shows that the average effective length per vehicle for traffic onMassachusetts Avenue is approximately 23 feet northbound and just under 21.5 feetsouthbound. Beacon Street westbound traffic averages approximately 21.5 feet pervehicle.

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· Boylston Street at Bowker Overpass, Boston, MA

Figure 4 indicates that the average effective length per vehicle is approximately 22feet, 23 feet and 22 feet for vehicles approaching on Bowker Overpass southbound,Boylston Street eastbound, and Boylston Street westbound, respectively.

Suburban Locations

· University Drive at Amity Street, Amherst, MA

Figure 5 indicates that traffic on each of the four approaches average between 23.5feet and 25.2 feet per vehicle.

· Fellsway East at Pond Street and West Wyoming Avenue, Stoneham, MA

Figure 6 shows that the average queue length per vehicle ranges betweenapproximately 23.5 feet and 25.5 feet for each approach.

· Main Street (Route 109) at Spring Street, Medfield, MA

Figure 7 indicates that the average effective vehicle length on Spring Streetsouthbound is approximately 22 feet. The remaining three approaches range from23.5 feet to 25.2 feet per vehicle.

· Salem Street at Maplewood Street and Lebanon Street, Malden, MA

Figure 8 shows that average effective vehicle length for approaching traffic on theMaplewood Street northbound approach and the Salem Street westbound approach areapproximately 20.2 feet and 20.1 feet, respectively. The Lebanon Street southboundand the Salem Street eastbound approaches are approximately 25 feet per vehicle.

Aggregated Data

Figure 9 presents the average effective vehicle lengths aggregated for all urbanlocations, all suburban locations, and all studied locations. The average effectivevehicle length at urban locations is approximately 22.5 feet. At suburban locations,the average effective vehicle length is 24 feet. The average effective vehicle length forall locations studied is 23.2 feet.

CONCLUSIONS

The data indicate that the average effective length of a vehicle in queue is slightly shorter aturban locations than at suburban locations, but the difference is negligible. The 23.2 footaverage effective vehicle length calculated for all studied intersections indicates that theassumption of 25 feet per passenger vehicle equivalent used in queue calculations is valid.

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NEITE Technical Committee members contributing to this study

Neil Boudreau

Bob Campbell

Justin Curewitz

Rod Emery

Jim Fitzgerald

Kim Hazarvartian

Ken Petraglia

Michael Pompili

Adrianna Santiago

Robert Tong

Mike Wasielewski

UMass ITE Student Chapter

David Champoux

Hugo Rivera

Matt Skelly

Ian McKinnon

Keith Wenners

Appendix A

Aerial Intersection Photos

1. Commonwealth Avenue @ Babcock Street, Boston, MA

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2. Massachusetts Avenue @ Boylston Street, Boston, MA

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3. Massachusetts Avenue @ Beacon Street, Boston, MA

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4. Boylston Street @ Bowker Overpass, Boston, MA

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Bow

kerO

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5. University Drive at Amity Street, Amherst, MA

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6. Pond Street/Wyoming Street @ Lynn Fells Parkway/Fellsway East, Stoneham, MA

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7. Main Street (Rte 109) @ N. Meadows Road (Rte 27), Medfield, MA

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8. Lebanon/Maplewood Streets @ Salem Street, Malden, MA

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Appendix B

Data Tables

Table 1: Commonwealth Avenue (Route 20) at Babcock Street, Boston, MA

4:55 PM 11 280 25.54:55 PM 8 210 26.35:01 PM 5 145 29.05:01 PM 7 160 22.95:01 PM 11 280 25.55:26 PM 7 200 28.65:26 PM 5 125 25.05:31 PM 9 240 26.75:31 PM 11 290 26.45:40 PM 9 230 25.6

26.1

4:40 PM 12 300 25.0 4:45 PM 12 300 25.04:40 PM 10 260 26.0 4:45 PM 10 260 26.05:17 PM 11 280 25.5 4:45 PM 11 280 25.5

25.5 5:12 PM 8 200 25.05:12 PM 7 160 22.95:22 PM 8 200 25.0

24.9

Time

Approach 1 - EB

Approach 2 - WB

Lane 1 - Commonwealth Ave

Lane 1 - Commonwealth Ave - Left Turn Lane 2 - Commonwealth Ave Through

Time# of Cars in

Queue

Back of QueueDist. From Stop

Bar

AverageQueueLength

AverageQueueLength

# of Cars inQueue


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

Table 2: Massachusetts Avenue at Boylston Street, Boston, MA

4:30 PM 7 140 20.0 4:30 PM 10 220 22.04:32 PM 6 140 23.3 4:34 PM 5 130 26.04:34 PM 7 140 20.0 4:36 PM 10 220 22.04:36 PM 3 60 20.0 4:38 PM 11 220 20.04:38 PM 4 80 20.0 4:40 PM 5 100 20.04:42 PM 4 90 22.5 4:42 PM 5 100 20.04:43 PM 3 50 16.7 5:02 PM 1 40 40.05:02 PM 11 220 20.0 5:03 PM 6 120 20.05:03 PM 8 140 17.5 5:05 PM 3 70 23.35:05 PM 3 60 20.0 5:07 PM 6 140 23.35:07 PM 8 170 21.3 5:09 PM 7 180 25.75:09 PM 10 220 22.0 5:11 PM 8 170 21.35:11 PM 10 220 22.0 5:13 PM 6 140 23.35:13 PM 10 220 22.0 5:15 PM 7 160 22.9

20.5 23.6

4:45 PM 4 80 20.0 4:45 PM 7 140 20.04:47 PM 6 140 23.3 4:47 PM 6 140 23.34:49 PM 7 170 24.3 4:49 PM 7 160 22.94:51 PM 2 40 20.0 4:51 PM 3 80 26.74:55 PM 10 200 20.0 4:53 PM 8 200 25.04:57 PM 4 80 20.0 4:55 PM 10 220 22.04:59 PM 4 120 30.0 4:59 PM 8 160 20.05:17 PM 9 220 24.4 5:17 PM 9 220 24.45:18 PM 3 50 16.7 5:18 PM 7 170 24.35:20 PM 7 150 21.4 5:20 PM 8 180 22.55:22 PM 4 8 2.0 5:24 PM 7 160 22.95:24 PM 7 160 22.9 5:26 PM 6 140 23.35:26 PM 2 20 10.0 5:28 PM 9 180 20.05:28 PM 5 140 28.0 5:30 PM 7 150 21.45:30 PM 5 100 20.0 22.8

20.2

Lane 1 - Thru/Left Lane 2 - Thru/Right


# of Cars inQueue


Bar

AverageQueueLength

Approach 1 -SB

Approach 2 - NB

Time# of Cars in

Queue


Bar

AverageQueueLength

Time


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue

Table 2: Massachusetts Avenue at Boylston Street, Boston, MA (cont.)

4:30 PM 12 300 25.0 4:30 PM 12 300 25.04:33 PM 7 140 20.0 4:33 PM 10 180 18.04:35 PM 5 120 24.0 4:35 PM 3 70 23.34:37 PM 5 140 28.0 4:37 PM 5 130 26.04:39 PM 4 120 30.0 4:39 PM 5 100 20.04:41 PM 5 120 24.0 4:41 PM 3 60 20.04:43 PM 4 90 22.5 4:43 PM 2 40 20.04:45 PM 3 70 23.3 4:45 PM 7 150 21.45:02 PM 9 175 19.4 5:02 PM 10 220 22.05:04 PM 7 190 27.1 5:04 PM 12 300 25.05:06 PM 10 220 22.0 5:06 PM 11 240 21.8

24.1 22.1

4:47 PM 4 70 17.5 4:47 PM 4 50 12.54:49 PM 4 70 17.5 4:49 PM 3 50 16.74:51 PM 3 60 20.0 4:51 PM 4 100 25.04:53 PM 3 60 20.0 4:57 PM 3 70 23.34:55 PM 2 30 15.0 4:59 PM 6 120 20.04:57 PM 4 80 20.0 5:16 PM 1 20 20.04:59 PM 1 20 20.0 5:18 PM 7 130 18.65:16 PM 5 80 16.0 5:20 PM 2 30 15.05:18 PM 6 120 20.0 5:22 PM 7 140 20.05:20 PM 7 130 18.6 5:25 PM 8 130 16.35:22 PM 7 130 18.6 5:27 PM 2 30 15.05:25 PM 1 20 20.0 5:29 PM 1 20 20.05:27 PM 1 20 20.0 18.55:29 PM 1 20 20.0

18.8

Approach 3 - EB

Approach 4 -WB


Time# of Cars in

Queue

Time# of Cars in

Queue


Bar

AverageQueueLength

Lane 1 - Thru/Left Lane 2 - Thru/RightAverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

Table 3: Massachusetts Avenue at Beacon Street, Boston, MA

4:31 PM 2 40 20.0 4:31 PM 7 140 20.0 4:31 PM4:33 PM 2 50 25.0 4:33 PM 7 180 25.7 4:33 PM 1 20 20.04:35 PM 7 140 20.0 4:35 PM 7 140 20.0 4:35 PM 4 80 20.04:37 PM 4 80 20.0 4:37 PM 10 200 20.0 4:37 PM 24:39 PM 4 80 20.0 4:39 PM 5 120 24.0 4:39 PM 4 80 20.04:41 PM 2 50 25.0 4:41 PM 4 100 25.0 4:41 PM 2 40 20.04:43 PM 5 120 24.0 4:43 PM 5 110 22.0 4:43 PM 6 130 21.74:45 PM 4:45 PM 4:45 PM4:46 PM 4:46 PM 2 40 20.0 4:46 PM 2 40 20.04:47 PM 3 4:47 PM 2 4:47 PM 5 100 20.04:50 PM 2 40 20.0 4:50 PM 5 120 24.0 4:50 PM 4 120 30.04:52 PM 5 120 24.0 4:52 PM 5 120 24.0 4:52 PM 5 120 24.04:54 PM 4 4:54 PM 2 4:54 PM 14:55 PM 2 40 20.0 4:55 PM 2 40 20.0 4:55 PM 2 40 20.04:57 PM 2 40 20.0 4:57 PM 9 200 22.2 4:57 PM 3 70 23.35:00 PM 3 5:00 PM 7 160 22.9 5:00 PM 35:02 PM 2 40 20.0 5:02 PM 4 70 17.5 5:02 PM 5 90 18.05:05 PM 3 60 20.0 5:05 PM 7 150 21.4 5:05 PM 8 190 23.85:06 PM 2 5:06 PM 4 100 25.0 5:06 PM 4 100 25.05:07 PM 2 5:07 PM 8 200 25.0 5:07 PM 35:10 PM 2 5:10 PM 4 80 20.0 5:10 PM 1 20 20.05:12 PM 2 5:12 PM 7 140 20.0 5:12 PM 25:14 PM 2 5:14 PM 8 170 21.3 5:14 PM 25:15 PM 4 5:15 PM 8 160 20.0 5:15 PM 6 140 23.35:16 PM 2 5:16 PM 10 220 22.0 5:16 PM 2 40 20.05:18 PM 2 5:18 PM 7 150 21.4 5:18 PM 35:20 PM 4 5:20 PM 10 5:20 PM 8 21.75:22 PM 3 5:22 PM 11 210 19.1 5:22 PM 35:24 PM 5 5:24 PM 6 120 20.0 5:24 PM 35:26 PM 2 5:26 PM 9 200 22.2 5:26 PM 25:28 PM 3 5:28 PM 12 220 18.3 5:28 PM 15:30 PM 3 5:30 PM 8 180 22.5 5:30 PM5:32 PM 4 5:32 PM 9 170 18.9 5:32 PM 4

21.4 21.5

Approach 1 - WBLane 1 - Left Lane 1 - Thru Lane 2 - Right

AverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

Table 3: Massachusetts Avenue at Beacon Street, Boston, MA (cont.)

4:30 PM 7 140 20.0 4:31 PM 7 140 20.04:31 PM 8 140 17.5 4:32 PM 6 180 30.04:32 PM 2 80 40.0 4:40 PM 25 380 15.24:34 PM 12 260 21.7 4:42 PM 25 380 15.24:36 PM 15 300 20.0 4:43 PM 7 220 31.44:38 PM 17 340 20.0 4:45 PM 20 340 17.04:40 PM 17 340 20.0 5:07 PM 7 140 20.04:42 PM 20 340 17.0 5:09 PM 5 120 24.04:43 PM 13 250 19.2 5:11 PM 12 240 20.04:45 PM 13 250 19.2 5:13 PM 13 280 21.55:07 PM 5 120 24.0 5:17 PM 2 50 25.05:09 PM 5 120 24.0 5:18 PM 1 10 10.05:11 PM 12 240 20.0 5:22 PM 9 180 20.05:13 PM 9 180 20.05:15 PM 7 180 25.7 20.75:17 PM 7 180 25.75:18 PM 5 100 20.05:20 PM 13 300 23.15:22 PM 10 220 22.0

22.1

4:49 PM 5 100 20.0 4:49 PM 2 40 20.04:50 PM 1 10 10.0 4:50 PM 2 40 20.04:52 PM 4 80 20.0 4:52 PM 1 140 140.04:54 PM 3 60 20.0 4:54 PM 6 100 16.74:56 PM 4 80 20.0 4:58 PM 4 100 25.04:58 PM 5 110 22.0 5:00 PM 4 80 20.05:00 PM 7 140 20.0 5:03 PM 3 100 33.35:01 PM 9 200 22.2 5:05 PM 1 10 10.05:03 PM 7 140 20.0 5:27 PM 4 90 22.55:05 PM 3 60 20.0 5:29 PM 10 200 20.05:25 PM 5 120 24.0 5:31 PM 4 70 17.55:29 PM 10 200 20.0 5:33 PM 10 200 20.05:31 PM 3 6 2.0 5:35 PM 10 200 20.05:33 PM 3 60 20.0 5:36 PM 2 40 20.05:35 PM 10 200 20.0 5:38 PM 2 40 20.05:36 PM 7 140 20.0 5:40 PM 11 210 19.15:38 PM 8 140 17.55:40 PM 3 50 16.7 27.8

18.6

Approach 2 - SBLane 1 - Thru Lane 2 - Thru/Right

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar


Bar

AverageQueueLength

AverageQueueLength

Approach 3 - NBLane 1 - Left Lane 2 - Thru/Right

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue

Table 4: Boylston Street at Bowker Overpass, Boston, MA

5:15 PM 15 300 20.0 5:15 PM 14 295 21.15:17 PM 14 285 20.4 5:17 PM 14 285 20.45:18 PM 12 260 21.7 5:18 PM 12 260 21.75:21 PM 14 300 21.4 5:21 PM 14 300 21.45:22 PM 13 300 23.1 5:22 PM 14 300 21.45:24 PM 13 295 22.7 5:24 PM 14 295 21.15:26 PM 13 290 22.3 5:26 PM 13 290 22.35:27 PM 13 300 23.1 5:27 PM 14 300 21.45:30 PM 13 285 21.9 5:30 PM 13 280 21.5

21.8 6:07 PM 11 260 23.621.6

5:33 PM 8 180 22.55:35 PM 9 200 22.25:40 PM 8 200 25.05:42 PM 7 140 20.05:45 PM 5 110 22.0

22.3

5:47 PM 6 140 23.3 5:49 PM 6 120 20.05:49 PM 5 120 24.0 5:51 PM 4 110 27.55:53 PM 8 160 20.0 5:53 PM 9 170 18.95:54 PM 5 120 24.0 5:54 PM 5 120 24.05:57 PM 6 140 23.3 5:56 PM 7 150 21.46:00 PM 8 180 22.5 5:57 PM 5 130 26.0

22.9 6:00 PM 8 185 23.123.0

Approach 1 - WB

Approach 3 - EB

Lane 1 - Thru/Right Lane 2 - Thru/Left

Lane 1 - Thru/LeftApproach 2 - SB


Bar

AverageQueueLength

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Time# of Cars in

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Bar

AverageQueueLength

Time# of Cars in

Queue

# of Cars inQueue


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

Lane 1 - RT to Left Thru Lane 2 - LT to Left ThruAverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength

Table 5: University Drive at Amity Street, Amherst, MA

4:30 PM 9 245 27.2 4:32 PM 8 180 22.54:32 PM 12 285 23.8 4:34 PM 9 220 24.44:34 PM 6 140 23.3 4:36 PM 12 285 23.84:36 PM 10 260 26.0 4:38 PM 9 205 22.84:38 PM 9 220 24.4 4:40 PM 5 120 24.04:40 PM 12 300 25.0 4:42 PM 7 170 24.34:42 PM 8 215 26.9 4:46 PM 6 135 22.54:44 PM 10 235 23.5 4:48 PM 6 145 24.24:46 PM 8 195 24.4 4:50 PM 10 250 25.04:48 PM 8 220 27.5 4:52 PM 5 115 23.04:50 PM 8 215 26.9 4:54 PM 6 120 20.04:52 PM 5 140 28.0 4:56 PM 6 130 21.74:54 PM 6 140 23.3 4:58 PM 6 140 23.34:56 PM 6 160 26.7 5:00 PM 8 215 26.94:58 PM 7 170 24.3 5:02 PM 4 80 20.05:00 PM 8 200 25.0 5:03 PM 4 85 21.35:02 PM 6 145 24.2 5:05 PM 13 300 23.15:04 PM 9 205 22.8 5:07 PM 14 310 22.15:06 PM 9 225 25.0 5:09 PM 7 150 21.45:08 PM 11 270 24.5 5:11 PM 10 240 24.05:10 PM 11 255 23.2 5:13 PM 14 270 19.35:12 PM 9 245 27.2 5:15 PM 5 120 24.05:14 PM 7 170 24.3 5:16 PM 7 170 24.35:16 PM 12 300 25.0 5:22 PM 8 200 25.05:20 PM 11 295 26.8 5:24 PM 8 170 21.35:22 PM 11 270 24.5 5:26 PM 8 180 22.55:24 PM 12 295 24.6 5:28 PM 23.55:26 PM 11 280 25.5 5:30 PM5:28 PM 10 260 26.05:30 PM 12 300 25.0

25.2

Approach 1 -SB Approach 2 - NBLane 1 Lane 1

Time# of Cars in

Queue


Bar

AverageQueueLength


Bar

AverageQueueLength

Time# of Cars in

Queue

Table 5: University Drive at Amity Street, Amherst, MA (cont.)

4:30 PM 4 90 22.5 4:35 PM 8 155 19.44:32 PM 7 175 25.0 4:37 PM 9 215 23.94:34 PM 6 140 23.3 4:39 PM 10 240 24.04:36 PM 7 145 20.7 4:43 PM 6 130 21.74:38 PM 5 120 24.0 4:45 PM 8 165 20.64:40 PM 5 120 24.0 4:47 PM 12 275 22.94:42 PM 10 250 25.0 4:51 PM 5 105 21.04:44 PM 8 200 25.0 4:55 PM 10 260 26.04:46 PM 11 270 24.5 4:57 PM 4 100 25.04:48 PM 8 190 23.8 4:58 PM 7 165 23.64:50 PM 4 100 25.0 5:00 PM 5 120 24.04:52 PM 2 50 25.0 5:04 PM 8 205 25.64:54 PM 5 120 24.0 5:06 PM 7 160 22.94:56 PM 8 195 24.4 5:08 PM 8 190 23.84:58 PM 5 110 22.0 5:10 PM 8 220 27.55:00 PM 7 185 26.4 5:14 PM 9 220 24.45:02 PM 9 200 22.2 5:15 PM 9 200 22.25:04 PM 5 90 18.0 5:17 PM 9 245 27.25:06 PM 8 200 25.0 5:19 PM 6 115 19.25:08 PM 7 180 25.7 5:21 PM 8 195 24.45:10 PM 6 130 21.7 5:23 PM 6 160 26.75:12 PM 8 180 22.5 5:25 PM 11 290 26.45:14 PM 9 240 26.7 5:27 PM 12 275 22.95:16 PM 4 100 25.0 5:29 PM 13 300 23.15:18 PM 4 110 27.5 23.75:20 PM 4 100 25.05:22 PM 5 120 24.05:24 PM 7 160 22.95:26 PM 10 260 26.05:28 PM 8 180 22.55:30 PM 12 300 25.0

24.0

Approach 3 - EB Approach 4 - WB

Time# of Cars in

Queue


Bar

AverageQueueLength

Lane 1

Time# of Cars in

Queue


Bar

AverageQueueLength

Lane 1

Table 6: Fellsway East at Pond Street and West Wyoming Avenue, Stoneham, MA

4:56 PM 12 290 24.2 5:11 PM 6 130 21.74:58 PM 7 200 28.6 5:13 PM 7 170 24.34:59 PM 9 225 25.0 5:14 PM 4 100 25.05:02 PM 4 105 26.3 5:16 PM 6 155 25.85:25 PM 8 180 22.5 5:19 PM 4 105 26.35:27 PM 8 200 25.0 5:21 PM 4 100 25.05:30 PM 6 175 29.2 5:24 PM 5 105 21.05:31 PM 5 125 25.0 5:40 PM 5 105 21.05:33 PM 4 100 25.0 5:42 PM 11 260 23.65:34 PM 8 190 23.8 5:43 PM 5 110 22.0

25.4 5:47 PM 6 145 24.25:54 PM 6 130 21.7

23.5

5:01 PM 12 300 25.05:04 PM 10 260 26.05:05 PM 11 280 25.55:07 PM 8 200 25.05:08 PM 7 160 22.95:10 PM 8 200 25.05:12 PM 9 220 24.45:13 PM 10 240 24.05:14 PM 10 240 24.05:34 PM 11 290 26.45:35 PM 10 240 24.05:36 PM 12 300 25.05:38 PM 10 280 28.05:39 PM 4 100 25.05:42 PM 10 240 24.05:43 PM 10 260 26.05:44 PM 9 230 25.6

25.0

Approach 1 - WB Approach 2 -SBLane 1 Lane 1

Lane 1 - Fellsway East

All Exceeded 300' Range


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue

Time# of Cars in

Queue


Bar

AverageQueueLength

Approach 3 - NBLane 2 - Pond St

Table 7: Main Street (Route 109) at Spring Street (Route 27), Medfield, MA


20.2 23.9

5:19 PM 8 225 28.1 5:19 PM 12 300 25.05:21 PM 12 280 23.3 5:21 PM 13 290 22.35:29 PM 6 150 25.0 5:48 PM 12 295 24.65:48 PM 7 170 24.3 5:51 PM 11 295 26.85:54 PM 7 165 23.6 5:54 PM 10 240 24.05:56 PM 3 60 20.0 5:56 PM 6 150 25.05:59 PM 3 60 20.0 5:59 PM 11 275 25.0

23.5 24.7

Lane 1 - Left Lane 2 - Thru/Right


# of Cars inQueue


Bar

AverageQueueLength

Approach 1 -SB

Approach 2 - NB

Time# of Cars in

Queue


Bar

AverageQueueLength

Time


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength

Time# of Cars in

Queue

Table 7: Main Street (Route 109) at Spring Street (Route 27), Medfield, MA (cont.)

5:01 PM 5 125 25.0 5:01 PM 11 250 22.75:03 PM 4 105 26.3 5:03 PM 12 285 23.85:06 PM 7 165 23.6 5:08 PM 13 300 23.15:11 PM 11 240 21.8 5:11 PM 10 240 24.05:14 PM 9 220 24.4 5:14 PM 13 300 23.15:31 PM 9 215 23.9 5:31 PM 13 270 20.85:34 PM 12 285 23.8 5:34 PM 6 150 25.05:36 PM 8 190 23.8 5:39 PM 13 290 22.35:39 PM 8 185 23.1 5:41 PM 10 225 22.55:41 PM 7 175 25.0 5:44 PM 7 155 22.15:44 PM 5 120 24.0 22.9

24.1


25.0 25.6

Approach 3 - EB

Approach 4 -WB


Time# of Cars in

Queue

Time# of Cars in

Queue


Bar

AverageQueueLength

Lane 1 - Left Lane 2 - Thru/RightAverageQueueLength

Time# of Cars in

Queue


Bar

AverageQueueLength


Bar

AverageQueueLength

Time# of Cars in

Queue


Bar

Table 8: Salem Street at Maplewood Street and Lebanon Street, Malden, MA

5:19 PM 4 90 22.5 5:03 PM 8 220 27.55:21 PM 7 180 25.7 3 60 20.05:22 PM 4 90 22.5 5 110 22.05:23 PM 10 260 26.0 10 230 23.05:25 PM 9 210 23.3 9 180 20.05:26 PM 8 260 32.5 8 185 23.15:27 PM 4 80 20.0 6 130 21.75:29 PM 9 225 25.0 7 150 21.45:30 PM 6 150 25.0 4 80 20.05:31 PM 3 70 23.3 5:18 PM 4 85 21.35:32 PM 4 120 30.0 5:34 PM 2 35 17.55:49 PM 6 140 23.3 7 145 20.75:50 PM 9 240 26.7 4 90 22.55:52 PM 8 200 25.0 8 190 23.85:54 PM 6 165 27.5 3 65 21.75:55 PM 5 125 25.0 7 160 22.95:58 PM 6 155 25.8 4 85 21.35:59 PM 8 210 26.3 3 70 23.36:00 PM 3 75 25.0 3 60 20.06:02 PM 9 225 25.0 4 90 22.5

25.3 5:47 PM 2 45 22.521.8

Approach 1 -SB Approach 2 - NBLane 1 Lane 1

Time# of Cars in

Queue


Bar

AverageQueueLength


Bar

AverageQueueLength

Time# of Cars in

Queue

Table 8: Salem Street at Maplewood Street and Lebanon Street, Malden, MA (cont.)

5:05 PM 8 170 15.6 5:19 PM 12 240 20.05:07 PM 6 125 20.8 4 85 21.35:09 PM 6 125 50.0 10 230 23.05:11 PM 14 300 21.4 10 235 23.55:14 PM 12 300 25.0 5 90 18.05:15 PM 12 300 25.0 5 100 20.05:35 PM 13 300 23.1 5 110 22.05:36 PM 13 300 23.1 8 165 20.65:38 PM 11 300 21.8 8 180 22.55:39 PM 10 240 30.0 4 75 18.85:41 PM 12 300 17.9 5:33 PM 5 105 21.05:42 PM 9 215 18.9 5:48 PM 5 100 20.05:44 PM 8 170 21.9 6 135 22.55:45 PM 8 175 12.5 5 95 19.05:47 PM 4 100 25.0 5 115 23.0

25.9 13 260 20.012 245 20.411 255 23.212 260 21.76 140 23.35 110 22.0

21.0

Approach 3 - EB Approach 3 - WB

Time# of Cars in

Queue


Bar

AverageQueueLength

Lane 1

Time# of Cars in

Queue


Bar

AverageQueueLength

Lane 1

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