Crossborder Group presents some rare data of border crossings by cars and buses at the San Ysidro Port of Entry, as well as some additional survey data of retailers in the month following 9/11 attacks. CrossborderInforma briefings are issued 1-2 times each month, covering a variety of economic, industry, and policy-related issues in Mexico and along the US-Mexico border region. For more information, please contact our firm at Answers[at]CrossborderBusiness[dot]com, or call us toll free at 1-888-4XBORDER [888-492-6733]. Have a Mexico or NAFTA question? We can help.

1. CrossborderINFORMA | Research • Analysis • Insights
Independentbusiness, industry and policy market research, strategies and
market-entry services for Mexico and the NAFTA/CAFTA marketplace
The 9/11 Effect on Border Crossings at the San Ysidro POE
0
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
3,500,000
Jan-06
Apr-06
Jul-06
Oct-06
Jan-07
Apr-07
Jul-07
Oct-07
Jan-08
Apr-08
Jul-08
Oct-08
Jan-09
Apr-09
Jul-09
San Ysidro Monthly Cros
Passengers and Pedestrian
SY- Pedestrians SY - POV Passenge

2. September 11, 2013
As a reflection on the sad events that
occurred twelve years ago, Crossborder
Group reviewed some of its internal
data sets, and came across some hard-
to-find daily border crossing data
generously provided to our firm in 2002
by what was then known as INS.
This CrossborderINFORMA briefing
shares that – and some additional
survey data – with the public, to
remind us of one aspect of the
effects of 9/11 – the dramatic impact
that day (and on the days that
followed) on border crossers at the
San Ysidro Port of Entry (POE).

3. MONTHLY CAR CROSSINGS AT THE SAN YSIDRO POE
• Widely available border data shows the abrupt drop in vehicle crossings
northbound at the San Ysidro Port of Entry (POE) in September, 2001.
• From an average of 1.38 million car crossings per month, the number of
cars declined -25.9% in September and the immediate months after…

4. DAILY CAR CROSSINGS AT THE SAN YSIDRO POE: AUG-OCT 2001
• Hard-to-find daily data from at the San Ysidro POE gives an even more
dramatic perspective on the sudden changes at the border due to the
terrorist attacks on September 11, 2001.
• That day, the number of car crossings dropped -44.2%, with even fewer
(-62.2%) on Sept. 12. In fact, -48.1% fewer cars crossed that week
compared to the week prior…

5. DAILY BUS CROSSINGS AT THE SAN YSIDRO POE: AUG-OCT 2001
• In addition to car crossers at the San Ysidro border crossing, bus
passengers also were greatly impacted that day.
• From an average of 278 buses/day in the weeks prior, only 74 buses
crossed on Sept. 11, 2001 (a -73.4% drop). Notably, daily bus crossings
improved significantly within several weeks following the attacks…

6. POST 9/11 SURVEY OF SOUTH SAN DIEGO COUNTY RETAILERS
• In the days following the Sept. 11 attacks,
economic impacts on border communities
were already being felt.
• An October 2001 phone survey of South San
Diego County retailers was conducted by
Crossborder Group to assess impacts on
crossborder shopping.
• Of 52 participating retailers, nearly half
stated that shoppers from Tijuana or Baja CA
accounted for 31% or more of their sales…
• 74.5% of South SD retailers reported a drop
in sales after 9/11 – with an average drop of
over 25% (more than half of which they
attributed to fewer Baja California shoppers).
• Unfortunately, many of the ripple effects
from this attack are still felt in communities
along the US-Mexico border…

7. For insights on crossborder economics,
shopping and border retail strategies,
tourism, and transportation trends;
Mexico consumer and industrial markets;
manufacturing strategies; or other issues
along and across the Mexico-US border,
contact the team at Crossborder Group…
Mexico or border questions?
We Find Answers.
1-888-4XBORDER [888-492-6733]
www.CrossborderBusiness.com
answers@crossborderbusiness.com
Or…follow us by clicking on the icons below:

8. A FEW OF CROSSBORDER’S CLIENTS