The band model employs a portion of the Euclidean plane between two parallel lines.
[1] Distance is preserved along one line through the middle of the band.
Geodesics include the line along the middle of the band, and any open line segment perpendicular to boundaries of the band connecting the sides of the band.
Every end of a geodesic either meets a boundary of the band at a right angle or is asymptotic to the midline; the midline itself is the only geodesic that does not meet a boundary.
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