CN111652786A - Air route planning method for adding high-altitude air route into terminal area - Google Patents
Air route planning method for adding high-altitude air route into terminal area Download PDFInfo
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Abstract
The invention discloses a method for planning a flight path for adding a high-altitude flight path into a terminal area, which is characterized in that according to different grades of airports in each terminal area and the basic trend of the high-altitude flight path, the method utilizes the existing flight path points and the RNAV flight path points represented by self-defined latitude and longitude to determine the entrance and exit points of an aircraft added into the high-altitude flight path from the terminal area and the flight path points on a transition flight path, and finally, according to the actual flying condition of each airport in the terminal area, the flight path of the aircraft added into the high-altitude flight path from the terminal area is planned through the defined entrance and exit points and the flight path points. According to the invention, through the research on the route planning method for adding the high-altitude route to the terminal area, the terminal area flight and the high-altitude route flight can be effectively connected, and meanwhile, the approach control is convenient, so that a more efficient and ordered scheme is provided for the aircraft to successfully add the high-altitude route flight.
Description
Technical Field
The invention relates to a method for planning a route by adding a high-altitude route into a terminal area, belonging to the technical field of aerospace.
Background
In the civil aviation airspace approach, it is specifically stated that approaching and departing flight routes near an airport are complex, or the total number of taking off and landing of one or more adjacent airports exceeds 36,000, and a terminal or an approaching control area is considered to be set up so as to provide safe and effective air traffic control service for the aircraft which flies in the approaching and departing. Generally, the approach control service is provided for the approach and departure flight of 2 or more airports simultaneously in the terminal control area.
At present, civil aviation in China flies according to a planned airway, an aircraft flies from an airport according to a standard entering and leaving procedure, and the airway flying through a terminal area is connected to the airway flying at a cruising altitude layer. In order to adapt to the increasing air traffic flow, China has implemented the structure of large air channels, and meanwhile, high-altitude air routes are established among large airports. Thus, the number of high-altitude routes is small, and one high-altitude route is used for a plurality of airports, which results in convergence of air traffic. Meanwhile, the height of the terminal area is usually 6000m above the ground, the flight height of the high-altitude air route is 8100 m and above, and aircrafts taking off from different airports need to climb to the high-altitude air route in the space, so that the aircrafts can run disorderly, and the workload of controllers is increased.
At present, the flight in a terminal airspace is according to a fixed airway, an airplane is in flying connection with a cruising airway through an entrance-exit procedure, and when the airplane flies in a high-altitude airway, the airplane needs to be added into the high-altitude airway through one or more entrances and exits of the high-altitude airway, airway flow convergence can be caused, so that the air traffic density in the controlled airspace is high, the airplane needs to fly through an altitude layer, the flight condition is complex, and the operation of the aircraft is very complex. Meanwhile, in the climbing and descending stage of the aircraft, the flight attitude is often not stable, and attention needs to be paid to the connection operation between the terminal area and the high-altitude air route.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a method for planning the air route by adding high-altitude air route to terminal region features that the airports in the whole country are divided into the first, second and third classes according to their annual passenger flow, annual commercial transport and flying time and annual flying and landing time, and the functions of each class of airport are defined. And designing a transition route according to airports of different grades by using the existing waypoints or self-defined RNAV waypoints expressed by longitude and latitude, so that the aircraft can smoothly join the high-altitude waypoint from the terminal area.
The invention adopts the following technical scheme for solving the technical problems:
a method for planning a route for adding a high-altitude airway in a terminal area comprises the following steps:
step 1, dividing all airports in the whole country into a first-level airport, a second-level airport or a third-level airport according to annual passenger flow, annual commercial transportation flight times and annual take-off and landing times of the airports, and determining functions of the airports at all levels; the specific process is as follows:
step 1-1, acquiring annual passenger flow volume, annual commercial transportation flight number and annual take-off and landing number data of each airport in China, and selecting n airports with the annual passenger flow volume more than 20,000,000 people times and the annual commercial transportation flight number more than 160,000;
step 1-2, for n airports selected in the step 1-1, if the distance between an airport A and an airport B is less than 450km, merging the airports A and B, and taking the airport with the largest annual rising and landing frame as a merged airport; if there is still an airport C that is less than 450km away from at least one of airports a or B, merging airports A, B and C, and using the airport with the largest annual departure and landing frame as the merged airport; if there is still an airport D that is less than 450km from at least one of airports A, B or C, merging airports A, B, C and D, and using the airport with the largest annual departure and landing frame as the merged airport; and so on until there is no airport that can merge; the number of the merged airports and the airports which do not participate in merging is m, the m airports are defined as primary airports, the rest n-m airports are defined as secondary airports, and other airports in the whole country except the n airports are defined as tertiary airports;
step 1-3, defining a route between a first-level airport terminal area and a high-altitude route as a first-level transition route, defining a route between a second-level airport terminal area and a route point on the first-level transition route as a second-level transition route, and defining a route between a third-level airport terminal area and a route point on the first-level transition route or a route between the third-level airport terminal area and a route point on the second-level transition route as a third-level transition route; determining that a first-level airport has the functions of defining high-altitude airway access points, defining intermediate airway points of a first-level transition air route and designing the first-level transition air route; the secondary airport has the functions of defining waypoints on the primary transition route to join the primary transition route and designing the secondary transition route; the third-level airport can only use the functions of adding the defined access points and waypoints of the first-level airport and the second-level airport into the transition route and designing the third-level transition route;
step 2, designing a transition route of the first-level airport to join or leave the high-altitude route from a corresponding entering/leaving point according to the function of the first-level airport, wherein the transition route is the first-level transition route;
step 3, designing a transition route of the secondary airport to join or leave the high-altitude route from a corresponding entry/departure point according to the function of the secondary airport, wherein the transition route comprises a primary transition route and a secondary transition route;
and 4, designing a transition route of the three-level airport to join or leave the high-altitude route from the corresponding entry/departure point according to the functions of the three-level airport, wherein the transition route comprises a first-level transition route and a third-level transition route or comprises the first-level transition route, the second-level transition route and the third-level transition route.
As a preferred embodiment of the present invention, the specific process of step 2 is as follows:
step 2-1, inquiring the domestic aviation data compilation of China civil aviation, recording the range of a primary airport terminal area, and simultaneously recording the entering/leaving point on the boundary of the primary airport terminal area;
2-2, if the existing route points exist on the high-altitude route and the distance between the route points and the airport cluster nodes of the high-altitude route is within 300km, defining the route points as the entrance/exit points of the high-altitude route; if the existing waypoints do not exist on the high-altitude route, the RNAV waypoints positioned by the geographic coordinates are automatically added to serve as the entrance/exit points of the high-altitude route, and the distance between the RNAV waypoints and the entrance/exit points is within 500 km;
and 2-3, entering and exiting the high-altitude route through the entry/exit point defined in the step 2-2, connecting the entry/exit point with the entry/departure point on the boundary of the first-level airport terminal area in the step 2-1, designing a transition route, namely a first-level transition route, and adding the existing route point or automatically defining an RNAV route point as a middle route point of the transition route.
As a preferred scheme of the invention, the specific process of the step 2-3 is as follows:
designing a transition route for joining a high-altitude route: taking a departure point on the boundary of the primary airport terminal area as a starting point of a transition route, taking a high-altitude route entry point defined in the step 2-2 as a terminal point of the transition route, and selecting an existing route point or self-defining an RNAV route point as the transition route, namely a middle route point of the primary transition route;
designing a transition route away from a high-altitude route: and (3) taking the high-altitude airway exit point defined in the step (2-2) as a starting point of a transition airway, taking an entrance point on the boundary of the primary airport terminal area as a terminal point of the transition airway, and selecting the existing airway point or self-defining an RNAV airway point as a middle airway point of the transition airway, namely the primary transition airway.
As a preferred embodiment of the present invention, the specific process of step 3 is as follows:
step 3-1, inquiring the domestic aviation data compilation of China civil aviation, if a secondary airport has a terminal area, recording the range of the terminal area, and simultaneously recording the entering/leaving point on the boundary of the terminal area; if the secondary airport has no terminal area, recording the entry/exit point in the entry/exit procedure of the secondary airport;
step 3-2, selecting the existing waypoints on the primary transition route or the waypoints which are automatically positioned by using the geographic coordinates as the waypoints joining or leaving the primary transition route;
step 3-3, designing a transition route added with the high-altitude route: taking the departure point recorded in the step 3-1 as a starting point of the secondary transition route, taking the waypoint defined in the step 3-2 as a terminal point of the secondary transition route, and selecting the existing waypoint or the waypoint which is automatically positioned by using a geographical coordinate as a middle waypoint of the secondary transition route; the aircraft is added into the first-level transition route through the second-level transition route and is added into the high-altitude route through the first-level transition route;
designing a transition route away from a high-altitude route: the aircraft leaves the high-altitude airway through the first-level transition airway and leaves the first-level transition airway through the airway points defined in the step 3-2 so as to join the second-level transition airway; and (3) taking the waypoints defined in the step (3-2) as the starting points of the secondary transition routes, taking the harbor entry points recorded in the step (3-1) as the end points of the secondary transition routes, and selecting the existing waypoints or the waypoints which are automatically positioned by using the geographic coordinates as the middle waypoints of the secondary transition routes.
As a preferred embodiment of the present invention, the specific process of step 4 is as follows:
step 4-1, inquiring the national aviation data compilation of China civil aviation, and recording the entering/leaving point in the three-level airport entering and leaving program;
step 4-2, designing a transition route added with the high-altitude route: taking the departure point recorded in the step 4-1 as a starting point of the third-level transition route, taking a defined route point on the first-level or second-level transition route as an end point of the third-level transition route, and linearly connecting the starting point and the end point; the aircraft is added into the first-level or second-level transition route through the third-level transition route, if the aircraft is added into the first-level transition route, the aircraft is added into the high-altitude route through the first-level transition route, if the aircraft is added into the second-level transition route, the aircraft is added into the first-level transition route through the second-level transition route, and the aircraft is added into the high-altitude route through the first-level transition route;
designing a transition route away from a high-altitude route: the airplane leaves the high-altitude route through the first-level transition route and reaches the starting point of the third-level transition route through the first-level transition route or the second-level transition route; and taking the defined waypoints on the first-level or second-level transition route as the starting points of the third-level transition route, taking the harboring points recorded in the step 4-1 as the end points of the third-level transition route, and connecting the starting points with the end points in a straight line.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
based on the transition period from the traditional route to the high-altitude route in China, the number of the connecting routes between the terminal area and the high-altitude route is more, so that the operation in the air becomes complex and the management is difficult. Therefore, the invention can reasonably disperse the air traffic flow, facilitate the daily management of the controller and the operation of the pilot by scientifically designing the route of adding the high-altitude air route to the terminal area, and simultaneously facilitate the operation of the large airport, and reduce the interference of the small airport to the large airport, thereby leading the operation efficiency of the high-altitude air route to be higher.
Drawings
FIG. 1 is a flow chart of a route planning method for adding high-altitude routes to a terminal area according to the present invention.
FIG. 2 is a schematic diagram of the present invention for joining high air lanes at different levels of an airport.
FIG. 3 is a diagram of a first-level airport transition route embodiment.
FIG. 4 is a diagram of a secondary airport transition route embodiment.
Fig. 5 is a diagram of a three-airplane airport transition route embodiment.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The invention designs a transition route from a terminal area to a high-altitude route based on a marked high-altitude route. According to the annual passenger flow, commercial transportation flight frame number, annual flight lifting frame number and other data of the airports, the airports in China are divided into a first-level airport, a second-level airport and a third-level airport, and whether each level of airport has the functions of defining high-altitude air route access points, defining transition route access points and designing transition routes is defined. According to airports of different grades, a transition route is designed by utilizing the existing route points or self-defined Regional Navigation (RNAV) route points expressed by longitude and latitude, so that the aircraft can smoothly join the high-altitude route from a terminal area. The specific process is shown in fig. 1, and comprises the following steps:
step A: the national airports are classified, and are divided into primary, secondary and tertiary airports according to annual passenger flow, annual commercial transportation flight number and annual take-off and landing number of the airports, so that the functions of the airports in all levels are determined.
Step A-1: selecting annual passenger traffic volume and annual commercial transportation flight number data of the latest year, and selecting n airports with annual passenger traffic volume of more than 20,000,000 persons and annual commercial transportation flight number of more than 160,000 at airports.
Step A-2: and B, grading the national airports according to annual take-off and landing times of the airports on the basis of the step A-1.
Combining the n airports with the airport distance less than 450km selected in the step A-1, taking the airport with the largest annual taking-off and landing frame as the combined airport, and defining the m airports as primary airports, the rest n-m airports as secondary airports and the airports in the whole country as tertiary airports, wherein the combined airport and the airport which do not participate in combination are m (0 < m < n). For example, if n-20 airports are selected in step a-1, where the distance between the airport a and the airport b is less than 450km, the airports a and b are merged, and the airport b with the highest annual departure/landing number is the merged airport, and the merged airport plus the airports which do not participate in merging are 19, these 19 airports are defined as primary airports, and the remaining 1 airport a is secondary airports.
Step A-3: the function of each level of airport is specified.
As shown in Table 1, the primary airport has the functions of defining high-altitude airway access points, defining primary transition route airway points and designing a primary transition route; the secondary airport has the functions of defining waypoints on the primary transition route, adding the primary transition route and designing the secondary transition route; the third-level airport can only use the functions of adding the defined access points and waypoints of the first-level airport and the second-level airport into the transition route and designing the third-level transition route. A schematic diagram of this function is shown in fig. 2.
TABLE 1
And B: designing a transition route of a first-level airport from a terminal area to a high-altitude route.
Step B-1: and inquiring a national aviation data assembly (NAIP) of China civil aviation, recording the range of a primary airport terminal area, and simultaneously recording the entering and leaving points on the boundary of the terminal area.
Step B-2: high altitude airway access points are defined. Existing waypoints or RNAV waypoints defined by geographic coordinates themselves are selected as access points for the high-altitude route.
If the existing route point exists on the high-altitude route and the distance between the route point and the high-altitude route airport cluster node is within 300km, the route point is considered to be close to the airport terminal area range in the step B-1, and the route point can be defined as an entrance point and an exit point of the high-altitude route; if there are no existing waypoints, then the geographic coordinate defined RNAV waypoints can be added by itself as the high-altitude waypoints that should be within 500km of the departure and entrance point.
The airport cluster node refers to the number T of annual taking-off and landing through airports for N airports at one end of high-altitude route convenientlyiGDPE for airport cityiClass P of city where airport is locatediWeighting S given to airport by indexes of importance of airport with equal weightiSet of weights for each airport { SiNormalizing to obtain Si' }, nodes obtained by weighting the latitude and longitude of the airport, and node positions (lat).
Airport weight calculation formula:
Si＝a×Ti+b×Ei+c×Pi(a, b, c are weights)
Airport cluster node position formula:
wherein (long)i,lati) Represents the latitude and longitude coordinates of the i (i ═ 1, 2.., N) th airport.
Step B-3: a transition route is defined for a first-level airport to join or leave the high-altitude route. Existing waypoints or self-defined RNAV waypoints may be added as intermediate waypoints by entering and exiting the high-altitude waypoints defined in step B-2 and connecting them to the point of departure and entry on the airport terminal area boundary. The method specifically comprises the following steps:
adding a transition route of a high-altitude route: taking the departure point on the boundary of the terminal area as the starting point of the transition route, taking the high-altitude route access point defined in the step B-2 as the end point of the transition route, and selecting the existing route point or the self-defined RNAV route point as the route point in the middle of the transition route, such as the route marked as 'D' in FIG. 3;
transition route from high-altitude route: taking the high-altitude airway access point defined in the step B-2 as the starting point of the transition airway, taking the port entry point on the boundary of the terminal area as the end point of the transition airway, and selecting the existing airway point or the self-defined RNAV airway point as the airway point in the middle of the transition airway, such as the airway marked as "a" in fig. 3.
And C: and designing a transition route of the secondary airport from the terminal area to the high-altitude route.
Step C-1: inquiring NAIP of China, if a secondary airport has a terminal area, recording the range of the terminal area, and simultaneously recording the entering and leaving points on the boundary of the terminal area; if the secondary airport has no terminal area, only the entry and exit points in the entry and exit procedure of the airport need to be recorded.
Step C-2: and defining waypoints for joining the primary transition route. The waypoints can be selected from waypoints on the primary transition route and can also be self-defined waypoints represented by geographical coordinates.
Step C-3: and defining a transition route for the secondary airport to join or leave the high-altitude route.
Adding a transition route of a high-altitude route: and C, taking the departure point recorded in the step C-1 as a starting point of the secondary transition route, taking the waypoint defined in the step C-2 as an end point of the secondary transition route, connecting the starting point with the end point, and selecting the existing waypoint or the waypoint which is automatically positioned by using a geographical coordinate as the waypoint in the middle of the secondary transition route so as to design the secondary transition route. The aircraft is added to the first-level transition route through the second-level transition route, and is added to the high-altitude route through the first-level transition route, such as the route marked as "D" in fig. 4;
transition route from high-altitude route: the aircraft leaves the high-altitude airway through the first-level transition airway and leaves the first-level transition airway through the airway points defined in the step C-2 so as to join the second-level transition airway. Taking the waypoint defined in the step C-2 as the starting point of the secondary transition route, the harbor entry point recorded in the step C-1 as the end point of the secondary transition route, and selecting the existing waypoint or the waypoint which is automatically positioned by using the geographic coordinates as the waypoint in the middle of the secondary transition route, such as the route marked as 'A' in figure 4.
Step D: and designing a transition route for adding the high-altitude route from the terminal area to the three-level airport.
Step D-1: and inquiring the NAIP in China, and recording the departure and entry points in the departure and entry program of the three-level airport.
Step D-2: and defining a transition route for joining or leaving the high-altitude route of the three-level airport.
Adding a transition route of a high-altitude route: and D-1, taking the departure point recorded in the step D-1 as a starting point of the third-level transition route, taking the defined waypoint on the first-level or second-level transition route as an end point of the third-level transition route, connecting the starting point with the end point, and selecting no other waypoint in the middle of the third-level transition route. The aircraft is added into a first-level or second-level transition route through a third-level transition route, and then is added into a high-altitude route, such as the route marked as 'D' in the figure 5;
transition route from high-altitude route: the airplane leaves the high-altitude route through the first-level transition route and reaches the starting point of the third-level transition route through the first-level transition route or the second-level transition route. Taking the defined waypoints on the first-level or second-level transition route as the starting points of the third-level transition route, taking the harboring point recorded in the step D-1 as the end point of the third-level transition route, and selecting no other waypoint in the middle of the third-level transition route, such as the route marked as 'A' in figure 5.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (5)
1. A method for planning a route for adding a high-altitude airway into a terminal area is characterized by comprising the following steps:
step 1, dividing all airports in the whole country into a first-level airport, a second-level airport or a third-level airport according to annual passenger flow, annual commercial transportation flight times and annual take-off and landing times of the airports, and determining functions of the airports at all levels; the specific process is as follows:
step 1-1, acquiring annual passenger flow volume, annual commercial transportation flight number and annual take-off and landing number data of each airport in China, and selecting n airports with the annual passenger flow volume more than 20,000,000 people times and the annual commercial transportation flight number more than 160,000;
step 1-2, for n airports selected in the step 1-1, if the distance between an airport A and an airport B is less than 450km, merging the airports A and B, and taking the airport with the largest annual rising and landing frame as a merged airport; if there is still an airport C that is less than 450km away from at least one of airports a or B, merging airports A, B and C, and using the airport with the largest annual departure and landing frame as the merged airport; if there is still an airport D that is less than 450km from at least one of airports A, B or C, merging airports A, B, C and D, and using the airport with the largest annual departure and landing frame as the merged airport; and so on until there is no airport that can merge; the number of the merged airports and the airports which do not participate in merging is m, the m airports are defined as primary airports, the rest n-m airports are defined as secondary airports, and other airports in the whole country except the n airports are defined as tertiary airports;
step 1-3, defining a route between a first-level airport terminal area and a high-altitude route as a first-level transition route, defining a route between a second-level airport terminal area and a route point on the first-level transition route as a second-level transition route, and defining a route between a third-level airport terminal area and a route point on the first-level transition route or a route between the third-level airport terminal area and a route point on the second-level transition route as a third-level transition route; determining that a first-level airport has the functions of defining high-altitude airway access points, defining intermediate airway points of a first-level transition air route and designing the first-level transition air route; the secondary airport has the functions of defining waypoints on the primary transition route to join the primary transition route and designing the secondary transition route; the third-level airport can only use the functions of adding the defined access points and waypoints of the first-level airport and the second-level airport into the transition route and designing the third-level transition route;
step 2, designing a transition route of the first-level airport to join or leave the high-altitude route from a corresponding entering/leaving point according to the function of the first-level airport, wherein the transition route is the first-level transition route;
step 3, designing a transition route of the secondary airport to join or leave the high-altitude route from a corresponding entry/departure point according to the function of the secondary airport, wherein the transition route comprises a primary transition route and a secondary transition route;
and 4, designing a transition route of the three-level airport to join or leave the high-altitude route from the corresponding entry/departure point according to the functions of the three-level airport, wherein the transition route comprises a first-level transition route and a third-level transition route or comprises the first-level transition route, the second-level transition route and the third-level transition route.
2. The method for routing a terminal area to join a high-altitude airway as claimed in claim 1, wherein the specific process of step 2 is as follows:
step 2-1, inquiring the domestic aviation data compilation of China civil aviation, recording the range of a primary airport terminal area, and simultaneously recording the entering/leaving point on the boundary of the primary airport terminal area;
2-2, if the existing route points exist on the high-altitude route and the distance between the route points and the airport cluster nodes of the high-altitude route is within 300km, defining the route points as the entrance/exit points of the high-altitude route; if the existing waypoints do not exist on the high-altitude route, the RNAV waypoints positioned by the geographic coordinates are automatically added to serve as the entrance/exit points of the high-altitude route, and the distance between the RNAV waypoints and the entrance/exit points is within 500 km;
and 2-3, entering and exiting the high-altitude route through the entry/exit point defined in the step 2-2, connecting the entry/exit point with the entry/departure point on the boundary of the first-level airport terminal area in the step 2-1, designing a transition route, namely a first-level transition route, and adding the existing route point or automatically defining an RNAV route point as a middle route point of the transition route.
3. A method for routing a terminal area to join a high-altitude airway as claimed in claim 2, wherein the specific process of step 2-3 is as follows:
designing a transition route for joining a high-altitude route: taking a departure point on the boundary of the primary airport terminal area as a starting point of a transition route, taking a high-altitude route entry point defined in the step 2-2 as a terminal point of the transition route, and selecting an existing route point or self-defining an RNAV route point as the transition route, namely a middle route point of the primary transition route;
designing a transition route away from a high-altitude route: and (3) taking the high-altitude airway exit point defined in the step (2-2) as a starting point of a transition airway, taking an entrance point on the boundary of the primary airport terminal area as a terminal point of the transition airway, and selecting the existing airway point or self-defining an RNAV airway point as a middle airway point of the transition airway, namely the primary transition airway.
4. The method for routing a terminal area to join a high-altitude airway as claimed in claim 1, wherein the specific process of step 3 is as follows:
step 3-1, inquiring the domestic aviation data compilation of China civil aviation, if a secondary airport has a terminal area, recording the range of the terminal area, and simultaneously recording the entering/leaving point on the boundary of the terminal area; if the secondary airport has no terminal area, recording the entry/exit point in the entry/exit procedure of the secondary airport;
step 3-2, selecting the existing waypoints on the primary transition route or the waypoints which are automatically positioned by using the geographic coordinates as the waypoints joining or leaving the primary transition route;
step 3-3, designing a transition route added with the high-altitude route: taking the departure point recorded in the step 3-1 as a starting point of the secondary transition route, taking the waypoint defined in the step 3-2 as a terminal point of the secondary transition route, and selecting the existing waypoint or the waypoint which is automatically positioned by using a geographical coordinate as a middle waypoint of the secondary transition route; the aircraft is added into the first-level transition route through the second-level transition route and is added into the high-altitude route through the first-level transition route;
designing a transition route away from a high-altitude route: the aircraft leaves the high-altitude airway through the first-level transition airway and leaves the first-level transition airway through the airway points defined in the step 3-2 so as to join the second-level transition airway; and (3) taking the waypoints defined in the step (3-2) as the starting points of the secondary transition routes, taking the harbor entry points recorded in the step (3-1) as the end points of the secondary transition routes, and selecting the existing waypoints or the waypoints which are automatically positioned by using the geographic coordinates as the middle waypoints of the secondary transition routes.
5. The method for routing a terminal area to join a high-altitude airway as claimed in claim 1, wherein the specific process of step 4 is as follows:
step 4-1, inquiring the national aviation data compilation of China civil aviation, and recording the entering/leaving point in the three-level airport entering and leaving program;
step 4-2, designing a transition route added with the high-altitude route: taking the departure point recorded in the step 4-1 as a starting point of the third-level transition route, taking a defined route point on the first-level or second-level transition route as an end point of the third-level transition route, and linearly connecting the starting point and the end point; the aircraft is added into the first-level or second-level transition route through the third-level transition route, if the aircraft is added into the first-level transition route, the aircraft is added into the high-altitude route through the first-level transition route, if the aircraft is added into the second-level transition route, the aircraft is added into the first-level transition route through the second-level transition route, and the aircraft is added into the high-altitude route through the first-level transition route;
designing a transition route away from a high-altitude route: the airplane leaves the high-altitude route through the first-level transition route and reaches the starting point of the third-level transition route through the first-level transition route or the second-level transition route; and taking the defined waypoints on the first-level or second-level transition route as the starting points of the third-level transition route, taking the harboring points recorded in the step 4-1 as the end points of the third-level transition route, and connecting the starting points with the end points in a straight line.
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