tungwaiyip.info

home

about me

links

Blog

< January 2010 >
SuMoTuWeThFrSa
      1 2
3 4 5 6 7 8 9
10111213141516
17181920212223
24252627282930
31      

past articles »

Click for San Francisco, California Forecast

San Francisco, USA

 

Muni Collision, Truck Driver at Fault

SF Appeal has published the Muni onboard video recording of the collision between a Muni #19 bus and a pickup truck on Jan 5th morning. The intersection is controlled by four way stop sign. Question has been brought about who's at fault. I have reviewed the video frame by frame. I come to a clear conclusion that the truck driver was at fault. While the bus driver technically did not made a complete stop, it has the right of way. The accident was caused by the truck running the stop sign at a high speed.

The four frames below captured the action during a span of 2.8 s until the moment they collided.

  • Frame 1 - 00:02:34.22
  • Frame 2 - 00:02:35.02
  • Frame 3 - 00:02:36.02
  • Frame 4 - 00:02:37.02

At frame 1, using the trash can as a reference point, it shows the bus was right at the intersection. The truck was about half a block away. It should be immediately obvious that the bus has the right of way.

Bus collision video

At frame 2, the bus rolled forward. The truck was still some distance away.

Bus collision video

At frame 3, the bus proceeded across the intersection slowly. The truck still have not arrive at the intersection. It should stop and yield to the bus.

Bus collision video

At frame 4, truck ran the stop sign at high speed and caused the collision.

Bus collision video

Base on the video frames, I plotted the estimated position and the movement of the vehicles during this 2.8 s on a map. I estimated the bus has rolled through the stop at 8 mph. In contrast, the truck has flown through the intersection from half a block away at 32 mph.

Collision map

The verdict is clear, the truck driver was driving recklessly and caused the accident.

San Francisco Chronicle has published an article with the release video titled "Crash video shows bus, pickup ran stop signs". It implies they are equally at fault. I think this is wholly a mischaracterization by failing to unambiguously call out it was the truck's fault. The bus had the right of way. Actually had the bus made a complete stop the same accident could still happen.

2010.01.07 [] - comments

 

 

blog comments powered by Disqus

past articles »

 

BBC News

 

Syria war: '250 killed' in Eastern Ghouta bombardment (20 Feb 2018)

 

Trump pushes for ban on gun 'bump stocks' (20 Feb 2018)

 

Spain: Father of migrant boy found in suitcase in Ceuta freed (20 Feb 2018)

 

Damming the Nile: Explore with 360 video (20 Feb 2018)

 

Queen and Anna Wintour in London Fashion Week front row (20 Feb 2018)

 

Trump-Russia inquiry: Lawyer Alex van der Zwaan pleads guilty (20 Feb 2018)

 

Poles told to report 'anti-Polish slander' to diplomats (20 Feb 2018)

 

Florida shooting: West Point admits murdered hero (20 Feb 2018)

 

Save The Children ex-boss 'faced complaints' (20 Feb 2018)

 

Liu Wen: China supermodel's new year message sparks row (20 Feb 2018)

more »

 

SF Gate

 

Bay Area News (7 Jan 2012)

 

City Insider (11 Feb 2012)

 

Crime Scene (13 Feb 2012)

 

C.W Newius Column (10 Jan 2012)

 

C.W. Nevius Blog (11 Feb 2012)

 

Education News (10 Jan 2012)

 

KALW (11 Feb 2012)

 

Matier and Ross Blog (11 Feb 2012)

 

Albertsons to buy Rite Aid, combining groceries and drugstores (20 Feb 2018)

 

Steven Seagal has a cryptocurrency now. It's bad. (20 Feb 2018)

 

Amazon extends 5 percent back Prime credit card benefits to Whole Foods purchases (20 Feb 2018)

 

Even the elite are worrying about tech addiction (19 Feb 2018)

 

Children’s book industry has its #MeToo moment (19 Feb 2018)

 

Sexual harassment scandal weighs down HR startup BetterWorks (19 Feb 2018)

more »

 


Site feed Updated: 2018-Feb-20 15:00