Public Records Act Request (April 2, 2015): One hundred and twelve MDSP Traffic Collision Reports (CHP 555) and Public Safety Reports (DRP 385) for North Gate Road, South Gate Road and Summit Road during this period were completed and filed by MDSP Rangers. Traffic Collision Reports filed by CHP (the most serious collisions) and park ranger-investigated Trail Public Safety Reports involving mountain bike collisions were not included in this report.

Approximately one Collision every two weeks    

According to Park Leadership, “if the number of non-reported paved-road collisions involving bicycles and/or vehicles were included in this report, the overall totals would be significantly higher." 

MDSP Paved Road Collisions Report 2010 - 2014

  • Most cyclists had visible injuries (Minor/Moderate/Serious)
  • Most required medical responses: fire department, ambulance, and/or helicopter flights to local hospitals
  • CHP Commonality Factor: Most Collisions (82) occurred on or near Blind Curves
  • Bicycle vs. Vehicle (24) - Motorists at fault in 23 of these Collisions
  • Solo Bicycle (64) -  Other Causes (28) - Unsafe Speed (37)
  • Vehicle vs. Vehicle (9)
  •  Solo Vehicle (10)   
  • Solo Motorcycle (5)       

Primary Collision Factors: Left of Center Line, Unsafe Passing, Passing without SufficientClearance, Unsafe Speed, Unsafe Turning, Tire Blowout, Mechanical, Distracted Driver, DUI, Bike vs. Deer, Vehicle backing up, Unknown

Most Likely Day(s) for Paved Road Collisions: Saturday(43)  Sunday(34)  Monday (6)   Tuesday (7)   Wednesday (9)  Thursday (6) Friday (7) 

Most Likely Time for Paved Road Collisions: Between 11 AM and 3 PM

Solo Bike Bicycle Collisions (2010 - 2014):

2010 Solo Bicycle Collisions (17)  

Prime Cause: Mechanical left pedal (1) , Adjusting glove (1), Unknown( 2), Tire blowout (4), Unsafe speed (9)

2011 Solo Bicycle Collisions (11)

Primary Cause: Looked back and hit a rock ( 1), Pedal Strap (1), Tire blowout (2), Unsafe speed (7)

2012 Solo Bicycle Collision (13)

Primary Cause: Struck deer (1), Loose stem on handlebar(1), Rear wheel gave out (1), Unknown (2), Tire blowout (2), Unsafe speed (6)

2013 Solo Bicycle Collisions (11)

Primary Cause: Looked back at car (1), Loose gravel (1), Defective rear tire (1), Unknown (1), Unsafe speed (7)

2014 Solo Bicycle Collision (13)

Primary Cause: Jacket wrapped around rear tire (1), Unknown (1), Defective front tire (1), Unsafe turning movement on dirt/gravel (1), Broken crank arm (1), Unsafe speed (8)

Most Likely Days(s) for Bicycle Paved Road Collision: Saturday and Sunday

Most Likely Time for Bicycle Paved Road Collision: Between 11am and 3pm