Commercial Transport Operations Research Articles

Toward an Intelligent Brokerage Platform

In commercial transportation operations, one of the largest wasteful expenditures is the movement of tractor trailers with little or no cargo. Analysis of interfleet data shows many lost opportunities for identifying backhauling loads—cargo that could have been moved by an otherwise empty trailer on its return from a delivery point to its home base. Brokerage systems that facilitate matching of load-sharing and backhaul opportunities currently do not incorporate monitoring of real-time, geo-based information, analysis of historical geo-based information, and user-calibrated preferences from all brokerage participants. Future intelligent brokerage systems will need to provide a full range of services including supply chain visibility and automated identification of potential collaborations based on historical trends. In this paper an algorithm is described for identifying load-sharing and backhaul opportunities based on the detection of patterns in large-scale, event-based telematics network data.

Cabin Cruising Altitudes for Regular Transport Aircraft

The adverse physiological effects of flight, caused by ascent to altitude and its associated reduction in barometric pressure, have been known since the first manned balloon flights in the 19th century. It soon became apparent that the way to protect the occupant of an aircraft from the effects of ascent to altitude was to enclose either the individual, or the cabin, in a sealed or pressurized environment. Of primary concern in commercial airline transport operations is the selection of a suitable cabin pressurization schedule that assures adequate oxygen partial pressures for all intended occupants. For the past several decades, 8000 ft has been accepted as the maximum operational cabin pressure altitude in the airline industry. More recent research findings on the physiological and psycho-physiological effects of mild hypoxia have provided cause for renewed discussion of the "acceptability" of a maximum cabin cruise altitude of 8000 ft; however, we did not find sufficient scientific data to recommend a change in the cabin altitude of transport category aircraft. The Aerospace Medical Association (AsMA) should support further research to evaluate the safety, performance and comfort of occupants at altitudes between 5000 and 10,000 ft.

Customers and actors of ATM: military users

Abstract The airspace users community encompasses a wide range of quite different interest groups involved either in Commercial Air Transport Operations, Military Operations, General Aviation & Aerial Work Operations or Test Flights & Unmanned Aerial Vehicles Operations. Military Aviation plays a special role among these airspace users because of its specific needs related to the type of ATM services requested and the priority of access to airspace.

The role of advancing technology in the future of air transport

Subsonic jet transport has been with us now for about a quarter of a century. There are young people starting their careers today who have never known a sky without jet noise and the V-wing silhouette of a passenger carrying aircraft. Indeed, it must seem to them as permanent a feature of our world as the steam train between the world wars was to people such as myself; the big difference is, as I hope to show, that air transport has not yet reached a development plateau.Aviation has always been a dynamic industry, with a rapidly expanding technology and opportunity which has now taken it beyond the atmosphere, into space and onto the planets. The spectacular steps have not been taken in the first place for the benefit of commercial transport operations—although there have often been consequential advantages. Advances were pursued because they were thought necessary for the maintenance of effective armed forces and the provision of efficient weapons.

Meteorological Factors in Supersonic Transport Operations

It seems possible at this stage to judge which meteorological factors would be of most importance in commercial supersonic transport operations. The argument would be based on the possible data for the Concorde, which, as is well-known, will fly at mach 2·2 and for which the cruising altitude will be between 18 and 20,000 m. The mach 3 flight would have similar characteristics for which the cruising altitude would be 25,000 m. or more.

An American Development in Cargo‐carrying Aeroplanes

AIR freight carried by commercial transport operators has increased rapidly in volume during the last five years, especially since 1947. In the first eight months of 1949, for example, domestic cargo flown out of and into the three major airports in the New York City metropolitan area totalled 74,435,169 pounds—an increase of 21 per cent over the 61,541,098 pounds carried in the corresponding period of This cargo growth in one year compares with an increase of 23½ per cent in passenger traffic—from 2,014,370 air passengers during January‐August 1948, to 2,490,250 in the first eight months last year.