It needs to be investigated how reliable measurements may be 
also made on curving road sections (e.g. curve widening). Here, 
on the other hand, we have focused on geometric aspects, and a 
minimum of automation has been used. Image processing algo- 
rithms for the automatic tracking of vehicles and lane delinea- 
tion has to be introduced, to allow wider exploitation of single 
uncalibrated images in the present framework. 
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