Basic Terms - Leica FlexLine TS02 User Manual

9.13.2
Elements of a road
project
Applications

Basic Terms

Road projects consist, in general, of a horizontal and a vertical alignment.
a b c
P1'
P1'' P1'''
TSOX_108
Any project point P1 has E, N and H coordinates
in a determined coordinate system and has
three positions.
P1 ' Position on natural surface
P1 " Position on vertical alignment
P2'
P1 '" Position on horizontal alignment
P2''
With a second point P2 the alignment is defined.
P2''' P1 ' P2 '
P1 '' P2 ''
P1 ''' P2 ''' Horizontal alignment
α
a Natural surface
b Horizontal alignment
c Vertical alignment
Projection of the alignment onto
the natural surface.
Vertical alignment
Grade angle between the vertical
and horizontal alignment.
FlexLine, 175