美媒：人类在月球上留下多少“垃圾”？
90°
[edit]Regular, tunnel, and elevated
[edit]| 12 | 12
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1e2
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1x2
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1ex2
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1t2
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1et2
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1xt2
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1ext2
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1h2
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1eh2
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1xh2
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1exh2
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| fABZgl | 
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Forward and to left |
| fABZgr | 
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Forward and to right |
| fABZg+l | 
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Forward and from left |
| fABZg+r | 
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Forward and from right |
| fABZql | 
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To left and across |
| fABZqr | 
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To right and across |
| fABZq+l | 
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From left and across |
| fABZq+r | 
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From right and across |
| 12 | 12
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1e2
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1x2
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1ex2
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1t2
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1et2
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1xt2
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1ext2
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1h2
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1eh2
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1xh2
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1exh2
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Interruption
[edit]
In cutting
[edit]| 12345 | 12345
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123x45
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12x345
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124x35
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1ex2345
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| fCABZlr | Fork to left & right | |||||
| fCABZ+lr | Fork from left & right | |||||
| fCABZl+l | Fork to & from left | |||||
| fCABZr+r | Fork to & from right |
Embankment
[edit]| 12345 | 12345
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123x45
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12x345
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124x35
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1ex2345
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| fDABZlr | Fork to left and right | |||||
| fDABZ+lr | Fork from left and right | |||||
| fDABZl+l | Fork to and from left | |||||
| fDABZr+r | Fork to and from right |
Shifts
[edit]
45°
[edit]Regular, tunnel, and elevated
[edit]| 12 | 12
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1e2
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1x2
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1ex2
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1t2
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1et2
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1xt2
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1ext2
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1h2
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1eh2
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1xh2
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1exh2
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| fABZg2 | 
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Through & to corner 2 |
| fABZg3 | 
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Through & to corner 3 |
| fABZg+1 | 
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Through & from corner 1 |
| fABZg+4 | 
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Through & from corner 4 |
| fABZq1 | 
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Across & to corner 1 |
| fABZq2 | 
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Across & to corner 2 |
| fABZq+3 | 
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Across & from corner 3 |
| fABZq+4 | 
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Across & from corner 4 |
| 12 | 12
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1e2
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1x2
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1ex2
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1t2
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1et2
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1xt2
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1ext2
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1h2
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1eh2
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1xh2
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1exh2
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KRW crossover components
[edit]
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KRW (from the Dutch kruiswissel; literally cross exchange) icons are for crossing between parallel lines, and should not be confused with ABZ icons used for branching off from a line. See WP:RDT/BSicon-KRW for single curve (non-junction) icons.
Two curves
[edit]Single branch
[edit]
Interruption
[edit]Parallel lines
[edit]Double branches
[edit]Main gallery: BSicon/Catalogue/junctions/3-way/set f#Double branches
Grade-separated
[edit]Variants
[edit]Double-width
[edit]| 12345 | 12345
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123x45
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124x35
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1ex2345
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1t2345
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1t23x45
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1t24x35
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1ext2345
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1h2345
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1h23x45
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1h24x35
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1exh2345
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| fbSHI2lr | 
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To left and right shift | |||||||||||
| fbSHI2+lr | 
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From left and right shift |
| 12 | 12
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1e2
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1x2
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1ex2
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| fbvvWSLgl | To left shift and return | ||||
| fbvvWSLgr | To right shift and return | ||||
| fbvvWSLg+l | From left shift and return | ||||
| fbvvWSLg+r | From right shift and return |
Mixed
[edit]Mixed with standard set (heavy rail)
[edit]The second table half, neither through or across section, depends on ordering of l and r to differentiate ambiguous cases. An alternative approach to disambiguation is provided in subsection reversed layering.
Reversed layering
[edit]The e/x status prefix is replaced in favor of suffix variations in 'x'.
Empty table cells do not necessarily indicate that a corresponding icon is missing. The naming scheme is not bijective. More than one systematic name for the same icon may be found with the rule set, not all of them are used.
Mixed with set u (light rail)
[edit]The second table half, neither through or across section, depends on ordering of l and r to differentiate ambiguous cases. An alternative approach to disambiguation is provided in subsection reversed layering.
Reversed layering
[edit]The e/x status prefix is replaced in favor of suffix variations in 'x'.
Empty table cells do not necessarily indicate that a corresponding icon is missing. The naming scheme is not bijective. More than one systematic name for the same icon may be found with the rule set, not all of them are used.
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