2007

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2006 Congestion Report - Auburn to Renton

The two graphs below display the percent of days on each route when traffic speeds fell below 35 mph. The darker line shows data for 2005. The lighter line shows data for 2003.

Morning Auburn to Renton via SR 167 graph displays 2005 data peaking at 45% around 7:20 a.m. compared to 2003 data peaking at 25% around 7:30 a.m. Afternoon Renton to Auburn via SR 167 graph shows 2005 data peaks of 45% between 4 p.m. and 6:30 p.m compared to 2003 data peaks of 30% during the same time.

The graph below displays highway productivity for a specific point along this route. When the line is at 100%, the maximum number of vehicles per hour are travelling through this point. Any time the line dips below 100%, the system is not operating at 100% efficiency.

SR 167 at 84th Aveneue SE graph shows 2005 data dropping to a low of 62% at 9 a.m. between 6 a.m. and 9 a.m. and again between 2 p.m. and 6 p.m. compared to 2003 data that dropped to a low of 75% between 6:30 a.m. and 8 a.m. and 70% between 3 p.m. and 5:30 p.m.

 

  Auburn to Renton AM Renton to Auburn PM
Route SR 167 SR 167
Peak time 7:40am 5:25 pm
Length 9.8 miles 9.8 miles
Travel time at posted speeds 10 minutes 10 minutes

Average Peak Travel Time 2003

16 minutes 16 minutes
Average Peak Travel Time 2005 17 minutes 18 minutes
Average Peak Travel Time Change, 2003-2005 6% 13%
95% Reliable Travel Time 2003 24 minutes 27 minutes
95% Reliable Travel Time 2005 26 minutes 33 minutes
95% Reliable Travel Time Change, 2003-2005 8% 22%
Ratio of Peak Travel Time to Maximum Throughput Travel Time (MT³I) 2003 1.4 1.4
Ratio of Peak Travel Time to Maximum Throughput Travel Time (MT³I) 2005 1.5 1.6
Traffic Volume Peak Hour Change -2% -2%
Duration of Peak Period, 2003 (hours:minutes) 1:10 2:50
Duration of Peak Period, 2005 (hours:minutes) 2:35 3:05
Change (in minutes) 85 15