2005 State of Mobility Report - City of Bellevue

CHAPTER 7: Safety
7-B. Highest Accident Intersections, 2005
Location
SE 26th Place at 128th Avenue SE 1.91
SE Wolverine Way at 105th Avenue Se 1.69
NE 2nd Street at 105th Avenue NE 1.69
NE 21st Street at 100th Avenue NE 1.58
Main Street at 102nd Avenue NE 1.50
NE 4th Street at 102nd Avenue NE 1.31
NE 10th Street at 110th Avenue NE 1.21
Northup Way at West Lake Sammamish Parkway 1.18
NE 8th Street at 112th Avenue NE 1.15
SE 41st Place at Factoria Boulevard SE 1.14
many accidents occur over time. Bellevue collects
accident data and tracks accident trends through
its Accident Reduction Program. Table 7-A displays
the categories of police investigated traffic accidents
in the city for the past five years. It also breaks
out two subsets of traffic accidents — pedestrianinvolved
and bicycle-involved.
The data in the table reveals two important points
about the safety of Bellevue’s transportation system:
• The trend line for the number of accidents
reflects a general decline over time — the fewest
number of police-investigated accidents in more
than ten years was recorded in 2004. There was a
rise in reported accidents in 2005, but still below
the number reported in 2000. 2005 did see a
significant increase in bicycle involved accidents.
• The number of traffic related fatalities remains
low. According to the U.S. Department of
Transportation’s Fatality Analysis Reporting
System, there are 14.66 traffic accident fatalities
for every 100,000 people. If this national statistic
were applied to Bellevue’s population, we would
anticipate more than 17 traffic accident fatalities
each year. However, Bellevue’s annual average is 2
traffic fatalities. There were no reported fatalities
in 2005.
2005 Rate
The City’s accident data
for any given year is further
analyzed by location so
that the highest accident
intersections and mid-block
corridors can be identified
and monitored.
Intersections
An intersection accident
rate is used to determine the
relative number of accidents
at any given intersection. The
rate allows staff to compare
intersections that serve a high
volume of cars to those that serve a lower traffic
volume. The intersection accident rate describes the
number of accidents for every one million vehicles
entering the intersection. A rate of 1.0 means
one accident occurs for every million vehicles
entering the intersection. The top 30 high accident
intersections, as ranked by intersection rate, are
identified each year for monitoring.
Table 7-B lists the top 10 high accident intersections
for 2005. The full list of 30 for 2005 can be found
in Appendix A-9.
Highlights of this data include:
• No intersection in 2005 had an accident rate
higher than 2.0 (two accidents per million
vehicles entering the intersection).
• Five of the top 10 intersections are signalized,
but the first four intersections are unsignalized.
• An accident reduction project has already been
completed at the fifth ranked location, Main and
102nd Ave NE.
Two of the intersections in the top ten in 2005 were
also on the list in 2004 (Northup Way at West Lake
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2005 State of Mobility Report Chapter 7