TRANSACTIONS NEWSLETTER ONLINE

January/February 2005

Facts & Figures

Top 10 Bay Area Congestion Hot Spots

Ranking of Commute-Period Bottlenecks Along Bay Area Freeways, 2003
(Number 1 indicates the most congested freeway; see related story)

2003 Rank	Location (numbers correspond to map below)	2003 Daily (Weekday) Vehicle Hours of Delay	2002 Rank
1	Interstate 80, westbound, a.m. Alameda/Contra Costa County State Route 4 to Bay Bridge metering lights	6,570	1
2	Interstate 80, eastbound and U.S. 101, northbound, p.m. San Francisco Cesar Chavez Street to west end of Bay Bridge	4,520	4
3a	Interstate 580, eastbound, p.m. Alameda County Hopyard Road to west of El Charro Road	4,320	3
3b	Interstate 580, westbound, a.m. Alameda County North Flynn Road to Airway Boulevard	4,320	5
5	Route 4, westbound, a.m. Contra Costa County Hillcrest Avenue to Loveridge Road	3,670	7
6	U.S. 101, southbound, a.m. Marin County South of Rowland Boulevard to Interstate 580	2,980	9
7	U.S. 101, southbound, p.m. San Mateo/Santa Clara County University Avenue to Shoreline Boulevard	2,490	28
8	Route 24, eastbound, p.m. Alameda County Interstate 580 to Caldecott Tunnel	2,470	37
9	Interstate 880, northbound, p.m. Santa Clara County Montague Expressway to north of Dixon Landing Road	2,450	6
10	Interstate 580, eastbound, p.m. Alameda County East of Livermore Avenue to east of Greenville Road	2,370	105

Map

Notes: Rankings are for routes in which continuous stop-and-go conditions occur with few, if any, breaks in the queue. Thus, corridors that have equally severe delays, but where congestion is broken into several segments, may rank lower in this type of congestion listing. Congestion is defined as average speeds below 35 miles per hour for 15 minutes or more.

Source: Caltrans District 4

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