Recently, a basic pattern of coast seaway system networking has been established in China. As a result, a large number of precautionary areas will be gradually established. Because of the high frequency of ships’ encounters and accidents, these precautionary areas have been a weak but important facet of ships’ routeing. Navigational Traffic Conflict Technique (NTCT) was introduced to quantitati...

The aim of the study was to find typical errors of traffic participants leading to frequent traffic-conflicts. For this purpose ~5 registered conilicts and the types of behavior leading to them by observing 201 subjects driving along a standardized route and describing their behawar. The data collected this way. together uith Intormation about the driving record of the subjects obtained in expl...

Consistency and consensus in conflict solution performance was investigated in two real-time simulations involving experienced air traffic controllers and trainees. The simulations consisted of participants repeatedly playing a specific en route traffic scenario. Conflict solution performance and consistency was measured by analysing participant’s solutions to a specifically designed conflict. ...

In air traffic management, conflict prevention information refers to the guidance maneuvers, which if taken, ensure that an aircraft’s path is conflict-free. These guidance maneuvers take the form of changes to track angle or ground speed. Conflict prevention information may be assembled into prevention bands that advise the crew on maneuvers that should not be taken. Unlike conflict resolution...

Traffic safety analysis has often been undertaken using historical collision data. However, there are well-recognized availability and quality problems associated with collision data. In addition, the use of collision records for safety analysis is reactive: a significant number of collisions has to be recorded before action is taken. Therefore, the observation of traffic conflicts has been adv...

The role of the air traffic controller in future air traffic management systems is that of a passive monitor, who intervenes in potential conflict situations only if pilots, aided by onboard traffic displays, fail to implement safe and timely conflict resolutions. Yet, such scenarios are entirely plausible and even likely, particularly in busy airspaces. However, it is also likely that an a con...

The wrong behaviour of road traffic participants is a permanently discussed issue in many countries with advanced road transport. Such behaviour does not always result in traffic accident, but only in restriction or danger to the culprit or other participants. For monitoring the behavioural problems it is possible to apply the video-analysis of the conflict situations. The methodology of the co...

The performance of an automated conflict resolution algorithm was investigated in terms of its sensitivity to specific airspace regions and increased traffic demand. The algorithm is envisioned as part of an automated separation assurance function in a future air traffic control system. It was tested in a non-real-time simulation of current-day and heavily increased demand scenarios, based on 2...

In this paper an imaging system for bus traffic conflict investigation is presented. The system employs geo-referenced stereo sequences and tracking procedure to provide much greater information regarding pre-crash and crash events than what is currently available. The exploitation of the traffic conflict technique potentiality as a surrogate safety measure could constitute an effective tool in...

This paper describes an integrated solution to traffic conflict detection and resolution with weather avoidance in the Center-TRACON Automation System. An automatic conflict resolution algorithm developed and tested to resolve aircraft-to-aircraft conflicts is modified to reroute aircraft around convective weather constraints while avoiding traffic conflicts. The approach extends algorithms whi...