Friday, December 16th

42nd Street Event Traffic Management Final Alternatives

After Canad is open and operating generating different traffic patterns

Alternatives Not Recommended

• Additional On-Site Parking – due to cost and infrequent use– Additional parking for adjacent developments should

have shared arrangements

• Construct 17th Ave S. Overpass – Too much misdirection for cost– Still needed in future

• Direct Access to I-29 – Against FHWA policy– Access point would be 17th Ave S.

South Lot takes 88 Minutes to Empty

South Lot takes 57 Minutes to Empty

South Lot takes 45 Minutes to Empty

Build 43/Extend 17th

South Lot takes 38 Minutes to Empty

Exit Direction

Number of ParkingSpaces

Number of

Outbound Lanes

Rate/ Lane(veh/

hour)(2)

Rate/ Hour(veh/hour)

Longest Exit Time

(mins.)

Percent reduction from Present condition B

Weighted Average Exit Time(mins.) C

Present Condition4-lane Exit

SB on 42nd St. 2,640(1) 2 900 (2) 1,800 88(3) N/A

37

NB on 42nd St. 1,448(1) 2 900 (2) 1,800 48 N/A

Alternative 16-lane Exit

(3-lanes South)

SB on 42nd St. 2,260 3900 (2)600 (1)

2,400 57

35

24EB on 11th Ave. 550 1 900 (1) 900 36

NB on 42nd St. 1,025 2 900 (2) 1,800 34 29(4)

Alternative 27-lane Exit

(4-lanes South)

SB 42nd St. to EB 17th Ave.

1,130 2900 (1)600 (1)

1,500 45

4920

SB 42nd St. via 43rd St.

1,130 2900 (1)600 (1)

1,500 45

EB on 11th Ave. 550 1 900 (1) 900 36

NB on 42nd St. 1,025 2 900 (2) 1,800 34 29(4)

Alternative 38-lane Exit

(4-lanes South, 3-lanes North)

SB 42nd St. to EB 17th Ave.

955 2900 (1)600 (1)

1,500 38

57

18

SB 42nd St. via 43rd St.

955 2900 (1)600 (1)

1,500 38

EB on 11th Ave. 550 1 900 (1) 900 37

NB on 42nd St. via North Dwy

800 2900 (1)600 (1)

1,500 32

21NB on 42nd St. via 11th Ave.

575(5) 1 900 (1) 900 38A All alternatives are also represented in Figures 1-4.

B The percent reduction is calculated separately for the exit direction and is the time reduction for the direction using the highest exit times. C The weighted average exit time is calculated weighting the number of vehicles and the average time in takes each to exit, assuming the average departure time per vehicle is half of the longest exit time. (1) Typically, during an event that is at capacity, traffic departing from Lot 3 and the VIP lot are directed half to the north and half to the south on 42nd Street. (2) Assumes that the center left-turn lane that is temporarily used as a thru lane will only achieve 600 vph, thru lanes achieve 900 vph. Number of lanes per rate is shown in parenthesis.(3) Relates to actual observations or testimony (Backstreet Boys 71 minutes)(4) This reduction in exit time is a function of the reduced number of spaces in the north lot. It is not due to increased efficiency.(5) Assumes 225 vehicles from the VIP lot and 350 vehicles from the south parking lot (see Figure 4)

South Lot takes 45 Minutes to Empty

Build 43/Extend 17th

Recommending this AlternativeCost ~ $0.5 M plus expand 38/32

Add Turn LanesMay need to Capture Through as Left

Intersection of 32nd & 38th