#### Bridges 100 m long, with variable opening, to cross small rivers and roads.

#### This is a standard straight bridge for single to quad rail, 100 m long, crossing nothing at a height of 7m. It is intended for a railway to cross smaller rivers, FS-roads, the roads in HDDS© technology, some special HDDS© rails and other 2-dimensional objects in FS95 and FS98, but is also usable in FS2000. The total width of the opening can be up to 90m. The upper rail supports power lines with pylons and colored or textured embankments.

Calling Sequence

The following parameters are used:

Airport Name | SCASM | Meaning
Scale | %4 | Scale, should always be 0.25 (for German systems 0,25 )
Heading | %5 | Deviation from the south/north axis in degrees So 90 means west/east
Parameter 0 | %6 | Width of the opening in 50 cm units. A value of 100 means a 50m opening. The maximum possible value is 199 -height - that is 171 for the normal 7m.
Parameter 1 | %7 | Electrical Power lines for the upper rail 0 = No power 1 = Wires only 2 = Simple pylons and wires 3 = Textured pylons and wires
Parameter 2 | %8 | Shape of the bridge rails. 0 = no bridge rail nm = shape n color m, n = 0…3, m = 1…8 n=0 n=1 n=2 n=3 Nm >= 40: A small colored wall with color %8-40.
Parameter 3 | %9 | Color scheme for the embankment Hexadecimal number 0 = no embankment drawn 1-FF = FS color. 100 Textured embankment with grass.r8 101 Textured embankment with broads.r8 102 Textured embankment with bushmnt.r8 intended for users of MOUNTAIN by Hans Meier 103 Textured embankment with desert.r8 104 Textured embankment with arid.r8 Please contact me if you want to propose additional textures
Visibility | %10 | Visibility range. Do not use the default value of 20 km that Airport proposes. I recommend 8 km. There is a detailed note on the importance of this parameter. Read it with care, even if you are an experienced designer, as it saves you hours of unnecessary work later.

Hints and special effects

This macro uses the include file arrail.inc to calculate the radius which it is loaded to the scenery buffer.

The standard height of 7m is mandatory if this bridge is used to cross a road or river directly after crossing another railway. The 7m is necessary to be clear of the electrical wires. A version with 4m to cross roads, or rivers without boats, is attached with file name brid16n2.api and can be entered as user defined rails.

Versions for other heights can be easily made by editing the macro and replacing the height in the line Uvar( $he 28 ). Unfortunately the current release of Airport 2.10 does not propagate the value %3 properly. It is proposed to use %3 to define the height of the bridge with a future release of Airport, the appropriate line is commented.