Time-Sensitive Products, Cost, and Cargo Security

Freight as the Weakest Link in the Chain was the title of my blogpost the other day and I see that today's New York Times has an article: In Air Cargo Business, It's Speed vs. Screening, Creating a Wink Link in Security.

The article focuses on time-sensitive products, a topic that we have conducted a lot of research on from fashion supply chains (not a life or death application but clothing is a basic right) to blood supply chains (another fascinating topic of research that we are completing a study on).

The Times article has several quotes from Professor Yossi Sheffi, a colleague of mine in transportation and logistics at MIT, whose center I visited when I held an NSF Faculty Award for Women.

Sheffi says: “You cannot stop the flow of time-sensitive air freight,” and “It is simply not realistic.” Professor Sheffi is the author of the book, Urban Transportation Networks, which is one of the books that I recommend to my students in the Transportation & Logistics course that I am instructing with help from my two wonderful Teaching Assistants, Nathan Kollett and Min Yu, who are doctoral students in Management Science at the Isenberg School of Management. Sheffi is also the author of The Resilient Enterprise.

Freight is a critical link in our global supply chains that produce and distribute products around the world. Hence, their security and viability are essential to our connected enterprises.

The air cargo system is built into the way many companies do business. However, the way that cargo is packed also makes it difficult to inspect, from special packaging, such as shrink-wrapping, which may provide exemption from inspections.

We are in an era of Fragile Networks in which multicriteria decision-making needs to be the norm for decision-making coupled with the identification of vulnerabilities and potential synergies in business.

Freight as the Weakest Link in the Chain

I travel a lot by plane, train, automobile, and/or bus and frequently write on this blog about my travel experiences. In my writings I have also commented on my air travel experiences and lack of security at distant airports. In my research, I assess network systems, in particular, those in transportation and logistics, including supply chains, from their efficiency to their vulnerability. A recent study of ours: "Fragile Networks; Identifying Vulnerabilities and Synergies in an Uncertain Age" highlights the system-wide aspects of network performance and the negative impact of disruptions as well as total link failures.

The events over the past couple of days in which cargo shipments, originating in Yemen, were found to contain explosive devices, which could have brought down airplanes, have further highlighted the importance of checking cargo.

As reported in the article, Mail Bombs Highlight Flaws in Systems for Screening Air Freight, in today's Boston Globe: "If you talk to anybody senior at airports, they will tell you freight is the weak link in the chain." This quote by Chris Yates, an aviation security specialist, is literally on target.

As for the facts reported in the article:

• Approximately 60 percent of all cargo coming into the United States is on passenger planes with the remainder of about 40 percent arriving on cargo planes.
• About 50,000 tons of cargo is shipped by air within the United States every day, with approximately 25 percent of that shipped by passenger airlines.

One particular vulnerability in the system: Trusted companies that regularly do business with freight shippers are allowed to ship parcels as “secure’’ cargo that is not automatically subjected to further checks.

Some countries such as England already have heightened and thorough cargo security checks which delay shipments up to 24 hours but offer safety and piece of mind. Here we see multicriteria decision-making in action -- counterbalancing cost vs. time vs. safety/security.

Read the terrific article in the Boston Globe by Gregory Katz and ponder what else besides the passengers and crew may be on that plane with you as you circle the globe.

Airport Security (or Lack Thereof) at a Remote Airport

Now that I am (safely) back from almost two weeks of air (and other) travel in Europe to speak at conferences, I can reflect on my observations regarding airport security (or lack thereof).

As an academic, I speak at conferences frequently, and especially, as a female, I believe that it is very important to, when asked, to accept invitations to give plenary talks. Such invitations brought me recently to the 2010 Computational Management Science conference in Vienna, Austria and to the Yalta Optimization Conference in the Crimea, Ukraine.

I was traveling to these conferences alone.

What struck me in a dramatic fashion was the different levels of airport security. My journey began on July 26, 2010, when I flew out of Logan airport in Boston and I flew on a total of 8 different flights over the subsequent 12 days, getting back to Boston on August 5 (and landing just before a major thunderstorm hit the area).

I conduct research in operations, with a focus on transportation, logistics, and network systems, and have a special interest in risk management and safety and security issues.

The airport security at Logan was, as one would expect, visible and thorough, and all air travelers had to remove their shoes, jackets, etc., while passing through security, and to have their liquids in plastic quart bags. My journey took me through the Frankfurt airport (en route to Vienna and then back from Vienna to Boston after my conference in Ukraine). Strangely enough, passengers did not need to remove their shoes (which is standard in every airport that I have flown through in the US in the past several years) when going through security at the Frankfurt airport but we did have to have the liquids that we were carrying through security in appropriately-sized plastic bags.

After my conference in Vienna (please see my earlier blogposts with photos on this great experience) I flew to the Simferopol airport, which is in the Crimea, Ukraine, through Kiev, the capital of Ukraine. My flights in Ukraine were on Ukraine International Airlines, and they were, unexpectedly, very comfortable and delightful.

The Yalta conference was a fascinating experience scientifically, culturally, and also personally, since this was my first trip to Ukraine, the country of the birthplace of my parents (and Ukrainian is my first language with Russian being my fifth).

Landing at the Simferopol airport, we disembarked under the skies, which were turning to dusk to a welcoming by a sea of taxi drivers (you can read about my driver "Igor" here). I urge all passengers to use the facilities of your airplane before disembarking your plane here since the restroom facilities are shocking (see bottom photo above). Not only is handicap-accessibility unknown but one has to lug the suitcases down slippery steps and then go up and down and then up again to reach a stall (with small wooden door) featured above. Yes, folks, I had nightmares after this travel experience and I have been to many countries.

After the conference in Yalta, on August 4, 2010, I was back at the Simferopol airport to take my flight to Kiev and then onwards to Vienna before I would begin my journey back to Boston via Frankfurt.

The almost gingerbread-looking house above is the terminal for intra-Ukraine flights. The landscaping, also featured above, is rather delightful. I noticed two gentlemen walking towards this terminal who were clearly tourists and who I had overheard speaking German so I spoke to them and they also spoke English (English is my second language and German my fourth). They were on my flight (see them drinking coffee above in the tiny airport coffeeshop) and, coincidentally (despite our flight being not even 1/3 full), had received seats next to me (21A,B,C). Some weird assignment algorithm must have been used for our seat allocation (or, perhaps, the gate agent just thought we were traveling together although we checked in separately).

Now for the punchline, at security at the Simferopol airport, not only did we not have to remove our shoes, we did not have to remove our plastic bags with liquids, AND we were all carrying large plastic bottles of water since it was so hot! Once the three of us passed the so-called security, we looked at one another with wide eyes. One of the Germans remarked that he was praying that the plane would not blow up. He was a physicist and even made sure on our flight that folks had their electronic equipment turned off upon takeoff and landing.

Waiting to board we were filled with anxiety and the plane (a Boeing) taxied for 15 minutes on a jetway with cracks and grass growing through. One of my new "friends" commented that if we were to have an emergency landing that it would be softened by the grass. Nothing like humor and jokes to alleviate some of the tension. We promised to all hold hands in the case of a "crash" landing.

Well, we made it to Kiev, transfered to the international terminal, whose main feature was the Irish Pub, and we hung out together until they were off on towards Dusseldorf and I was off to Vienna. My overnight at the NH hotel by the Vienna airport was heavenly and, if I am ever stuck, for some reason, at the Vienna airport, where you certainly can't starve, I will definitely stay at this terrific business hotel.