December 12, 2017 5:30 to 7 p.m. Rhinelander City Hall Dan Erva, - PowerPoint PPT Presentation

December 12, 2017 5:30 to 7 p.m. Rhinelander City Hall

 Dan Erva, P.E. - WisDOT  Fred McCue - WisDOT  Andy Dana, P.E. - Ayres Associates  Kevin Kuhlow, P.E. - Ayres Associates 2

 Identified needs  Proposed alternatives/solutions  Next steps  Questions 3

 Pavement is deteriorating  Crash history  Right-angle crashes for left-turning vehicles  Merging from free-flow, right turn slip ramps 4

Crash Severity Property Year Fatality Injury Damage Total Only 2012 0 2 7 9 2013 1 1 6 8 2014 0 2 6 8 2015 0 2 6 8 2016 0 0 6 6 Total 1 7 31 39 5

Crash Type Total Angle 18 Rear End 12 Run Off the Road 6 Side Swipe 2 Overturn 1 Total 39 6

 Signalized intersection with offset, left- turn lanes  Roundabout  No build 7

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 Reduces the risk of severe crashes by shifting left- turn lanes to improve visibility  Replaces free-flow, right-turn lanes with channelized right-turn lanes  Relocates or closes median openings  Does not meet standards for turn bay length and design speed  Continues need for traffic signal maintenance  Raises the grade of the intersection  Provides bicycle accommodations 9

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 Significantly reduces the number of conflict points  Lowers the severity of crashes  Increases the efficiency, causing less delay in traffic movement  Eliminates traffic signal maintenance  Reduces speed of vehicles entering the roundabout  No access modifications  Raises the grade of the intersection  Provides bicycle accommodations 11

 Level of Service (LOS)  LOS A = Free flow with minimal conflicts (0-10 second delay)  LOS B = Stable operation with minimal delays (10-20 second delay)  LOS C* = Lane changing restricted by other vehicles (20-35 second delay)  LOS D* = Approaching unstable flow with sudden slow downs (35-55 second delay)  LOS E = Unstable operation at Capacity (55-80 second delay)  LOS F = Gridlock, demand exceeds capacity (greater than 80 second delay) * represents typical design LOS 12

Level of Service (LOS) Year Improved Signal Roundabout 2019 B A 2039 C B 13

Alternative Cost Roundabout $2 million to $2.5 million Signalized intersection $3 million to $3.6 million 14

 Public input received by - December 30, 2017  Announce preferred alternative - early 2018  Environmental Document completed - early 2018  Finalize design - summer 2018  Construction currently scheduled - 2019 15

 Dan Erva, P.E., WisDOT Project Manager  (715) 365-5776  Daniel.Erva@dot.wi.gov  Andy Dana, P.E., Consultant Project Manager  (920) 327-7826  DanaA@AyresAssociates.com 16

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