finlo Posted November 2, 2022 Share Posted November 2, 2022 3 minutes ago, Gladys said: That makes more sense than expansion joints. I just googled "movement strips"! 1 Quote Link to comment Share on other sites More sharing options...
WTF Posted November 2, 2022 Share Posted November 2, 2022 1 hour ago, finlo said: I just googled "movement strips"! try again and add 'atc' to the end of it , gets you here. https://en.wikipedia.org/wiki/Flight_progress_strip 2 Quote Link to comment Share on other sites More sharing options...
John Wright Posted November 2, 2022 Share Posted November 2, 2022 This May help. Its long, but explains. Flight Progress Strips Article Information Category: General Content source: SKYbrary Content control: SKYbrary Definition "Electronic or paper strip containing planned and current flight plan data for a specific flight, made avaiable on an electronic display or flight progress board for use by air traffic controllers in the provision of ATS." - Source: EUROCONTROL Description A flight progress strip (sometimes referred to as "flight strip") presents important information about a flight in a tabular form. It is highly standartised to allow the controller to find the necessary data quickly. The space available is divided into fields that hold specific pieces of information, e.g. aircraft identification, type, transponder code, departure and destination aerodromes, etc. In paper strips the controller can write down pertinent information (clearances, estimates, etc.). There is no universal standard for flight strips. Each ANSP or ATSU thereof may design an optimal layout that suits their needs best. In most cases several layouts are used, e.g. one for departing, another for arriving and a third one for transit overflying aircraft when the unit is a Control Tower or Approach. An ACC may choose to have slightly different strips for e.g. eastbound and westbound traffic. Generic flight progress strip for overflying aircraft Different background colours may be used to further stress on the flight strip purpose (e.g. green for departing, blue for arriving traffic). Generic flight progress strip for departing traffic. Strip-sized pieces of paper are commonly used to represent vehicles (on the manoeuvring area) or as memory aids (e.g. work in progress, eqipment failure, runway length temporary reduced, etc.) Strip Management Strip holders are plastic boots that are designed to accomodate a single paper strip. The holders are then placed on strip boards and arranged in a way that corresponds to the situation. The strip holders may have different colours to denote that a specific strip is inserted into them. This is especially useful if all strips are identical in colour (usually white). Strip holders can be produced in different colours Each ATS unit has developed procedures for strip management. They define the way the strips are moved around to represent the traffic situation and its continuous development. For example, in a tower environment, several areas may be designated to accomodate: Flights that have started up but have not started taxiing yet Flights that are in the taxi phase Arriving flights for which estimates have been received but are not on the TWR frequency yet Arriving flights that are on the TWR frequency and are expecting a landing clearances Flights that have been cleared to take off, land or cross the runway The strip management procedures require the controllers to move the strips around these designated areas, e.g. when a taxiing flight is cleared for take-off, the controller would take the strip from the "taxi" area and place it in the "runway" area. This would serve as a reminder that the runway is occupied and would prevent e.g. an accidental runway crossing clearance. Effective strip management is an important barrier for preventing runway incursions. It is also very useful for building the accepting controller's situational awareness during the handover-takeover process. Another important part of strip management is strip annotation. Due to the limited space, ATC clearances and other data need to be abbreviated. The symbols and abbreviations are highly standartized so that other controllers can unambiguously interpret them (e.g. up arrow means the aircraft is climbing, a tick before the SID shows that the ATC clearance has been delivered, the letter I represents ILS approach, etc.). Electronic Strips Paper strips have a number of inherent limitations: cannot be linked to other systems (e.g. Advanced Surface Movement Guidance and Control System, Safety Nets) time consuming to print and update no information sharing (if the controller updates a strip, the data can only reach others through verbal coordination) updated information can be unreadable due to e.g. poor handwriting/misspelling, lack of discipline (controller input in the wrong field) require maintenance - consumables (paper, ink, toner, etc.) need to be changed on a regular basis Electronic strips have been developed as a response to paper strip limitations. Their look and feel is similar to the paper strips in terms of layout, colours and strip management. Editing strips is usually done similarly to editing fields in the aircraft label in stripless ATM systems. Electronic strips offer a number of advantages over the paper ones: More visualization tools available, e.g. different colours may represent a field being updated/coordinated with other controller/communicated to the crew, etc. different fonts and background shades may be used to highlight specific portions of the flight strip. colours may change dynamically to attract attention Can be linked to the ATM system safety features, e.g. if a controller inputs a conflicting clearance, the system may issue an early warning. Flight information can be updated and shared (coordinated) instantly Generic electronic strip bay (ESB). Note that specific colours are used for double SSR, NONRVSM state aircraft and RCF SSR code (7600). Paper strips have some advantages over their electronic counterparts though: they are immune to power and software failures offer greater flexibility, e.g. all free space can be used for annotations, not just the standard fields Stripless Systems While strips (either paper or electronic) are widely used in the control tower, ACCs have been gradually shifting towards stripless environment for more than 10 years. To achieve this, the information that used to be provided on the strips is integrated into various elements of the ATM systems, such as the aircraft label, windows and lists. Flight lists can contain "all" information about a particular flight, "the most significant" information about all flights that match certain criteria (e.g. are within the sector or are of interest to the sector) or specific information (e.g. all Mode S - derived information). Going paperless is intended to produce less workload for the controllers which in turn would increase their capacity. Paper strips still remain as a backup solution for some ACCs even after the introduction of a stripless system. Further Reading ORDER JO 7110.65T, Section 3. Flight Progress Strips (external link) MATS part 1, Appendix 😧 Flight Data Display Is Paper Safer? The Role of Paper Flight Strips in Air Traffic Control, a study by Wendy E. Mackay, University of Aarhus Categories General Quote Link to comment Share on other sites More sharing options...
Giggleberrys Posted November 2, 2022 Share Posted November 2, 2022 5 hours ago, Manx Mole said: It’s to do with the fact that it is a cross runway - ie crosses another runway. There must be procedures in place to ensure that only one runway is being used at any time. Someone highlighted that the extant procedures were not up to the required standard, although they’ve worked for the last 50 years just fine. ATC Management mentioned the issue to the local CAA, who instructed them to come up with a solution. They haven’t, so local CAA told them they can’t use 21-03 until they do. The rest is history. Why don’t they ask other airports who have cross runways how they do it? Is there any comparable airport in the UK that has cross runways? Quote Link to comment Share on other sites More sharing options...
John Wright Posted November 2, 2022 Share Posted November 2, 2022 5 hours ago, Manx Mole said: It’s to do with the fact that it is a cross runway - ie crosses another runway. There must be procedures in place to ensure that only one runway is being used at any time. Someone highlighted that the extant procedures were not up to the required standard, although they’ve worked for the last 50 years just fine. ATC Management mentioned the issue to the local CAA, who instructed them to come up with a solution. They haven’t, so local CAA told them they can’t use 21-03 until they do. The rest is history. Why don’t they ask other airports who have cross runways how they do it? 2 hours ago, Manx Mole said: Apparently, the specific issue that was raised relates to the ‘movement strips’. Perhaps someone with more knowledge on the subject than me can explain that to us. 2 hours ago, Manx Mole said: They are pieces of paper (strips) the controllers move around their desk like chess pieces to record and detail aircraft movements. 1 minute ago, Giggleberrys said: Is there any comparable airport in the UK that has cross runways? Yes, lots of airports with cross runways. I think Manx Mole has hit the nail on the head. However its not just a case of onboarding someone else’s procedures, there then has to be familiarisation and training of ATC with whatever specific procedure is adopted, so it becomes second nature and so mistakes aren’t made. The fact that they’ve maybe got away with a less than optimum procedure without incident for 60+ years is neither here no there, once its identified. As usual with IoMG its the secrecy, mushroom farming and lack of transparency, hoping no one will leak, spill the beans, whistleblow and they’ll get away with it, through silence or obfuscation. By now they should know that doesn’t work. 3 1 Quote Link to comment Share on other sites More sharing options...
0bserver Posted November 2, 2022 Share Posted November 2, 2022 6 minutes ago, Giggleberrys said: Is there any comparable airport in the UK that has cross runways? Gatwick can get pretty heated and Manchester borders on angry. But I can't think of any really cross runways. 2 Quote Link to comment Share on other sites More sharing options...
Chef Raekwon Posted November 2, 2022 Share Posted November 2, 2022 10 minutes ago, John Wright said: Yes, lots of airports with cross runways. I think Manx Mole has hit the nail on the head. I'm struggling to think of any UK airports with regular scheduled services with cross runways? Quote Link to comment Share on other sites More sharing options...
finlo Posted November 2, 2022 Share Posted November 2, 2022 Surely it would be a case of using the most suitable runway for the given weather not both at the same time? 1 Quote Link to comment Share on other sites More sharing options...
Hoops Posted November 2, 2022 Share Posted November 2, 2022 Just now, finlo said: Surely it would be a case of using the most suitable runway for the given weather not both at the same time? Well, that takes the fun out of it. Quote Link to comment Share on other sites More sharing options...
John Wright Posted November 2, 2022 Share Posted November 2, 2022 15 minutes ago, Chef Raekwon said: I'm struggling to think of any UK airports with regular scheduled services with cross runways? They May not use them regularly, and you may be right, not all have scheduled services, but Humberside, Norwich, Southend, Carlisle should all have written procedures. perhaps Anglesey, Wick, Teeside? 1 Quote Link to comment Share on other sites More sharing options...
Capt_Mainwaring Posted November 2, 2022 Share Posted November 2, 2022 1 hour ago, John Wright said: They May not use them regularly, and you may be right, not all have scheduled services, but Humberside, Norwich, Southend, Carlisle should all have written procedures. perhaps Anglesey, Wick, Teeside? Belfast International. Prestwick. Both major airports, so should have something to share. 1 Quote Link to comment Share on other sites More sharing options...
Asthehills Posted November 3, 2022 Share Posted November 3, 2022 9 hours ago, Manx Mole said: They are pieces of paper (strips) the controllers move around their desk like chess pieces to record and detail aircraft movements. Sounds very low rent. I hope they have a procedure for opening and closing the door on windy days that keeps us all safe! 3 Quote Link to comment Share on other sites More sharing options...
John Wright Posted November 3, 2022 Share Posted November 3, 2022 1 hour ago, Asthehills said: Sounds very low rent. I hope they have a procedure for opening and closing the door on windy days that keeps us all safe! They needed that at Port Jack, yesterday. Quote Link to comment Share on other sites More sharing options...
asitis Posted November 3, 2022 Share Posted November 3, 2022 8 hours ago, finlo said: Surely it would be a case of using the most suitable runway for the given weather not both at the same time? That would seem to be the obvious answer, but it isn't because the most suitable runway, in theory, is always the one into the wind direction, however depending on companies SOP's , aircraft types etc etc that is not always the case. ATC will tell you which runway is in use but you can always request a more suitable alternative. It is normal for 26 to be in use let's say with a minor crosswind, in which case an aircraft may well request 21 as an alternative. There is a procedure where the ILS to 26 is used as a cloud break, then request a visual to runway 21 again in strong winds from the SW. To sum up, this is a terrible time of year for a regulatory issue to be allowed to drag on and close runway 21, but as usual this is the airport so any balls up is SNAFU. 1 Quote Link to comment Share on other sites More sharing options...
gerremonside Posted November 3, 2022 Share Posted November 3, 2022 9 hours ago, John Wright said: They May not use them regularly, and you may be right, not all have scheduled services, but Humberside, Norwich, Southend, Carlisle should all have written procedures. perhaps Anglesey, Wick, Teeside? Southend, Norwich, wick, teesside, all cross runways are closed. Humberside is heavily restricted and very rarely used. Carlisle is to all intents and purposes closed to commercial traffic. Aldergrove and valley are both military or quasi military and different types of procedure apply. It is actually very rare to have an operational cross runway, but given the islands uniquely exposed to weather position probably worth having. 2 2 1 Quote Link to comment Share on other sites More sharing options...
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