us 30 and SR 603 – Ashland county September 7, 2017 - PUBLIC meeting Welcome and intro
US 30 & SR 603 Proposed REDUCED CONFLICT u-turn intersection (rcut) ASD-30 Public Meeting
SAFETY STUDY – Priority rankings Ranked #11 on ODOT’s 2013 Rural Intersection Safety Program Listing Ranked #17 on the 2014 listing Ranked #7 on the 2015 listing Ranked #10 on the 2016 listing Ranked #2 on ODOT’s 4-lane Divided Intersection Listing ASD-30 Public Meeting
SAFETY STUDY – Crash info Reviewed Crash Data from 2008-2016 53 Total Crashes Averages 5.89 Crashes per Year Majority of Crashes (75%) are Angle crashes Majority of Crashes (58%) resulted in Injuries ASD-30 Public Meeting
CRASH DIAGRAM (2008-2016) ASD-30 Public Meeting
Countermeasures considered Traffic Signal Existing traffic volumes do not meet signal warrant criteria Could negatively impact safety performance by increasing crash frequency on US 30 Potential is still there for high speed angle and left turn crashes Signal would violate driver expectations due to limited access/expressway features of US 30 ASD-30 Public Meeting
Countermeasures considered cont. Relocation of SR 603 Provide a more desirable 90O intersection angle Cost prohibitive due to physical constraints (Charles Mill reservoir and steep embankment) Potential is still there for high speed angle and left turn crashes RCUT ASD-30 Public Meeting
Reduces the number of conflict points BENEFITS OF RCUT Reduces the number of conflict points Eliminates severe injury type angle and left turn crashes Angle and left turn crashes account for 63% of fatal crashes at intersections Only need to look in one direction at a time ASD-30 Public Meeting
existing Conflict points 4-lane Divided Intersection ASD-30 Public Meeting
Reduced Conflict points Reduced Conflict Point Intersection ASD-30 Public Meeting
Conflict point comparison Conflict Point Comparison by Intersection Type Conflict Type 4-leg intersection RCUT (4-lane roadway) Crossing 24 Merge 10 8 Diverge Total 42 16 ASD-30 Public Meeting
New to Ohio but not the U.S. 1987 – RCUT concept first developed RCUT History New to Ohio but not the U.S. 1987 – RCUT concept first developed Richard Kramer of Alabama Maryland North Carolina 2000 – First RCUT constructed (Alabama) Also known as J-Turn, Superstreet or Restricted Crossing intersections ASD-30 Public Meeting
As of 2014: Rcut Locations in u.s. Source: Restricted Crossing U-Turn Informational Guide (FHWA, 2014) ASD-30 Public Meeting
Missouri evaluation of J-TURN’S Analysis of 5 sites converted to RCUT’s 35% total crash reduction 54% reduction in all severe crashes No fatal crashes post-installation ASD-30 Public Meeting
Rcut vIDEO ASD-30 Public Meeting
Common concerns with rcut’S Nothing needed – spend money elsewhere RCUT maneuvering Quick acceleration only to decelerate Right turn deceleration lanes needed Shift problems elsewhere Other crash types Other intersections Slow moving and large vehicles ASD-30 Public Meeting
CURRENT Project timeline Public Meeting Comments Due October 9, 2017 Sale Date January 1, 2019 Begin Construction April 1, 2019 Current Estimated Construction Cost $1,601,893 ASD-30 Public Meeting
QUESTIONS ASD-30 Public Meeting