Illinois supplement to the national manual on uniform traffic control devices /

"March 10, 2011."--cover letter.

Improving the air traffic control system : an assessment of the National Airspace System Plan.

Item 1005-C

Direct support and general support maintenance repair parts and special tools lists (including depot maintenance repair parts and special tools) for air traffic control facility AN/TSQ-97 (NSN 5895-00-137-8548).

"23 November 1983."

Organizational maintenance manual : air traffic control central AN/TSW-7A (NSN 5820-01-018-1246).

"June 1979."

Direct support and general support maintenance repair parts and special tools list ... for air traffic control central AN/TSW-7A (NSN 5820-01-018-1246).

"18 January 1983."

Organizational maintenance repair parts and special tools lists for air traffic control facility AN/TSQ-97 (NSN 5895-00-137-8548).

"23 November 1983."

Hand receipt covering contents of components of end item (COEI), basic issue items (BII), and additional authorization list (AAL) : air traffic control central AN/TSW-7A (NSN 5895-01-018-1246).

"27 December 1985."

Serious problems continue to trouble the air traffic control workforce /

"For release ... May 25, 1989."

Street traffic bibliography; a selected and annotated bibliography of the literature of street traffic control and related subjects, 1920-1933,

Mode of access: Internet.

The timing of airport traffic control as influenced by weather and aircraft performance.

"Meteorological study sponsored by Air Navigation Development Board under Contract Cwb-8175 with the U.S. Weather Bureau."

National practices for the operation and protection of school zones and crossings; an informational report by Committee on Traffic, Subcommittee on Traffic Control Devices in cooperation with Colorado Department of Highways.

Cover title.

Locating detectors for advanced traffic control strategies : handbook /

Mode of access: Internet.

Traffic control: p120-catenin acts as a gatekeeper to control the fate of classical cadherins in mammalian cells

Proteins of the p120 family have been implicated in the regulation of cadherin-based cell adhesion, but their relative importance in this process and their mechanism of action have remained less clear. Three papers in this issue suggest that p120 plays a key role in maintaining normal levels of cadherin in mammalian cells, and that it may do so by regulating cadherin trafficking.

ATC-lab: An air traffic control simulator for the laboratory

Air Traffic Control Laboratory Simulator (ATC-lab) is a new low- and medium-fidelity task environment that simulates air traffic control. ATC-lab allows the researcher to study human performance of tasks under tightly controlled experimental conditions in a dynamic, spatial environment. The researcher can create standardized air traffic scenarios by manipulating a wide variety of parameters. These include temporal and spatial variables. There are two main versions of ATC-lab. The medium-fidelity simulator provides a simplified version of en route air traffic control, requiring participants to visually search a screen and both recognize and resolve conflicts so that adequate separation is maintained between all aircraft. The low-fidelity simulator presents pairs of aircraft in isolation, controlling the participant's focus of attention, which provides a more systematic measurement of conflict recognition and resolution performance. Preliminary studies have demonstrated that ATC-lab is a flexible tool for applied cognition research.

An analysis of relational complexity in an air traffic control conflict detection task

Theoretical analyses of air traffic complexity were carried out using the Method for the Analysis of Relational Complexity. Twenty-two air traffic controllers examined static air traffic displays and were required to detect and resolve conflicts. Objective measures of performance included conflict detection time and accuracy. Subjective perceptions of mental workload were assessed by a complexity-sorting task and subjective ratings of the difficulty of different aspects of the task. A metric quantifying the complexity of pair-wise relations among aircraft was able to account for a substantial portion of the variance in the perceived complexity and difficulty of conflict detection problems, as well as reaction time. Other variables that influenced performance included the mean minimum separation between aircraft pairs and the amount of time that aircraft spent in conflict.