Boston Highway Travel Times Per Month For I-93

This page contains the summaries and graphs of the travel times for I-93, the Southeast Expressway, from the southern end of the South Station Tunnel to the I-93/Rte. 3 split in Braintree. Remember that on the graph, white is northbound and red is southbound. 9am is at 540 minutes and 5pm is at 1020 minutes.

July 2002

Summary:
Northbound mean travel time: 26.1 min. (am) 24.8 min. (pm) 17.1 min. (other)
std deviation: 0.4, 0.7, 0.2
Southbound mean travel time: 12.5 min. (am) 23.4 min. (pm) 14.0 min. (other)
std deviation: 0.2, 0.5, 0.2
1253 entries

Graph:

August 2002

Summary:
Northbound mean travel time: 25.2 min. (am) 22.7 min. (pm) 18.1 min. (other)
std deviation: 0.4, 0.4, 0.3
Southbound mean travel time: 12.5 min. (am) 21.7 min. (pm) 13.4 min. (other)
std deviation: 0.3, 0.3, 0.2
1378 entries

Graph:

September 2002

Summary:
Northbound mean travel time: 27.7 min. (am) 19.8 min. (pm) 15.1 min. (other)
std deviation: 0.4, 0.4, 0.3
Southbound mean travel time: 12.1 min. (am) 23.6 min. (pm) 12.7 min. (other)
std deviation: 0.1, 0.4, 0.1
1753 entries Graph:

October 2002

Summary:
Northbound mean travel time: 28.4 min. (am) 23.5 min. (pm) 15.9 min. (other)
std deviation: 0.5, 0.6, 0.2
Southbound mean travel time: 12.6 min. (am) 23.8 min. (pm) 12.7 min. (other)
std deviation: 0.3, 0.3, 0.1
1974 entries

Graph:

November 2002

Summary:
Northbound mean travel time: 29.9 min. (am) 25.8 min. (pm) 15.6 min. (other)
std deviation: 0.9, 0.8, 0.4
Southbound mean travel time: 15.6 min. (am) 23.6 min. (pm) 13.2 min. (other)
std deviation: 0.6, 0.4, 0.2
1071 entries

Graph:

December 2002

Summary:
Northbound mean travel time: 24.6 min. (am) 19.4 min. (pm) 14.6 min. (other)
std deviation: 0.4, 0.3, 0.2
Southbound mean travel time: 13.0 min. (am) 23.1 min. (pm) 13.1 min. (other)
std deviation: 0.2, 0.3, 0.2
1744 entries

Graph:

January 2003

Summary:
Northbound mean travel time: 27.7 min. (am) 18.6 min. (pm) 16.0 min. (other)
std deviation: 0.4, 0.3, 0.2
Southbound mean travel time: 11.3 min. (am) 19.9 min. (pm) 12.1 min. (other)
std deviation: 0.1, 0.2, 0.1
1949 entries

Graph:

February 2003

Summary:
Northbound mean travel time: 21.2 min. (am) 17.6 min. (pm) 14.7 min. (other)
std deviation: 0.2, 0.3, 0.2
Southbound mean travel time: 11.7 min. (am) 21.6 min. (pm) 13.2 min. (other)
std deviation: 0.2, 0.3, 0.2
1909 entries

Graph (Note: the connector between the I-93 north and the Ted Williams Tunnel to Logan Airport opened on Jan. 20. I believe this has shortened the overall northbound ride.):

March 2003

Summary:
Northbound mean travel time: 21.4 min. (am) 17.3 min. (pm) 14.4 min. (other)
std deviation: 0.2, 0.3, 0.2
Southbound mean travel time: 10.8 min. (am) 22.8 min. (pm) 12.5 min. (other)
std deviation: 0.1, 0.5, 0.2
1817 entries

Graph:

April 2003

Summary:
Northbound mean travel time: 21.0 min. (am) 18.9 min. (pm) 12.2 min. (other)
std deviation: 0.3, 0.3, 0.1
Southbound mean travel time: 11.3 min. (am) 22.6 min. (pm) 12.1 min. (other)
std deviation: 0.2, 0.4, 0.1
1561 entries

Graph:

May 2003

Summary:
Northbound mean travel time: 22.8 min. (am) 17.1 min. (pm) 13.6 min. (other)
std deviation: 0.4, 0.2, 0.3
Southbound mean travel time: 11.4 min. (am) 24.8 min. (pm) 13.3 min. (other)
std deviation: 0.1, 0.4, 0.2
1862 entries

Graph:

June 2003

Summary:
Northbound mean travel time: 20.4 min. (am) 19.1 min. (pm) 12.2 min. (other)
std deviation: 0.3, 0.3, 0.1
Southbound mean travel time: 10.9 min. (am) 24.8 min. (pm) 12.3 min. (other)
std deviation: 0.1, 0.4, 0.1
1670 entries

Graph:

July 2003

Summary:
Northbound mean travel time: 18.5 min. (am) 18.4 min. (pm) 12.6 min. (other)
(-7.6, -6.4, -4.5 min from Jul 2002)
std deviation: 0.2, 0.3, 0.1
Southbound mean travel time: 11.6 min. (am) 25.4 min. (pm) 12.8 min. (other)
(-0.9, +2.0, -1.2 min from Jul 2002)
std deviation: 0.2, 0.4, 0.2
1787 entries

Graph:

August 2003

Summary:
Northbound mean travel time: 19.8 min. (am) 19.1 min. (pm) 12.9 min. (other)
(-5.4, -3.6, -5.2 min from Aug 2002)
std deviation: 0.4, 0.2, 0.1
Southbound mean travel time: 11.2 min. (am) 22.5 min. (pm) 12.2 min. (other)
(-1.3, +0.8, -1.2 min from Aug 2002)
std deviation: 0.2, 0.3, 0.1
1699 entries

Graph:

September 2003

Summary:
Northbound mean travel time: 27.2 min. (am) 18.0 min. (pm) 12.6 min. (other)
(-0.5, -1.8, -2.5 min from Sep 2002)
std deviation: 0.5, 0.3, 0.2
Southbound mean travel time: 13.1 min. (am) 23.4 min. (pm) 12.4 min. (other)
(+1.0, -0.2, -0.3 min from Sep 2002)
std deviation: 0.3, 0.3, 0.1
1907 entries

Graph:

October 2003

Summary:
Northbound mean travel time: 25.4 min. (am) 19.4 min. (pm) 12.8 min. (other)
(-3.0, -3.1, -3.1 min from Oct 2002)
std deviation: 0.4, 0.3, 0.2
Southbound mean travel time: 12.4 min. (am) 24.0 min. (pm) 12.9 min. (other)
(-0.2, +0.2, +0.2 min from Oct 2002)
std deviation: 0.3, 0.3, 0.2
2014 entries

Graph:

November 2003

Summary:
Northbound mean travel time: 25.2 min. (am) 16.2 min. (pm) 12.5 min. (other)
(-4.7, -8.4, -3.1 min from Nov 2002)
std deviation: 0.5, 0.2, 0.2
Southbound mean travel time: 11.2 min. (am) 24.8 min. (pm) 12.0 min. (other)
(-4.4, +1.2, -1.2 min from Nov 2002)
std deviation: 0.2, 0.6, 0.2
1167 entries

Graph:

December 2003

Summary:
Northbound mean travel time: 22.7 min. (am) 19.5 min. (pm) 14.1 min. (other)
(-1.9, +0.1, -0.5 min from Dec 2002)
std deviation: 0.5, 0.3, 0.3
Southbound mean travel time: 12.0 min. (am) 25.6 min. (pm) 13.4 min. (other)
(-1.0, +2.5, +0.3 min from Dec 2002)
std deviation: 0.2, 0.4, 0.2
1948 entries

Graph:

January 2004

Summary:
Northbound mean travel time: 24.8 min. (am) 16.2 min. (pm) 13.2 min. (other)
(-2.9, -2.4, -2.8 min from Jan 2003)
std deviation: 0.5, 0.2, 0.2
Southbound mean travel time: 12.6 min. (am) 19.3 min. (pm) 11.9 min. (other)
(+1.3, -0.6 -0.2 min from Jan 2003)
std deviation: 0.2, 0.2, 0.1
1866 entries

Graph:

February 2004

Summary:
Northbound mean travel time: 21.2 min. (am) 17.1 min. (pm) 12.5 min. (other)
(+0, -0.5, -2.2 min from Feb 2003)
std deviation: 0.3, 0.3, 0.1
Southbound mean travel time: 10.6 min. (am) 18.8 min. (pm) 12.3 min. (other)
(-1.1, -2.8, -0.9 min from Feb 2003)
std deviation: 0.1, 0.2, 0.1
2043 entries

Graph:

March 2004

Summary:
Northbound mean travel time: 22.7 min. (am) 18.2 min. (pm) 12.1 min. (other)
(+1.3, +0.9, -2.3 min from Mar 2003)
std deviation: 0.4, 0.3, 0.1
Southbound mean travel time: 12.1 min. (am) 21.3 min. (pm) 12.5 min. (other)
(+1.3, +1.5, +0 min from Mar 2003)
std deviation: 0.3, 0.3, 0.1
1647 entries

Graph:

April 2004

Summary:
Northbound mean travel time: 31.4 min. (am) 18.2 min. (pm) 13.7 min. (other)
(+10.4, -0.7, +1.5 min from Apr 2003)
std deviation: 0.7, 0.3, 0.2
Southbound mean travel time: 12.4 min. (am) 22.7 min. (pm) 15.2 min. (other)
(+0.9, +0.1, +3.1 min from Apr 2003)
std deviation: 0.3, 0.4, 0.3
1447 entries Graph:

May 2004

Summary:
Northbound mean travel time: 29.4 min. (am) 17.3 min. (pm) 13.6 min. (other)
(+6.6, +0.2, +0 min from May 2003)
std deviation: 0.6, 0.2, 0.2
Southbound mean travel time: 12.6 min. (am) 19.4 min. (pm) 15.4 min. (other)
(+1.2, -5.4, +2.1 min from May 2003)
std deviation: 0.2, 0.3, 0.2
1744 entries Graph:

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