### Why is a length of about 1.25l bridge segment is constructed

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1.A compound highway curve to the right with both curves having interior angles of 45 degree, has an approach tangent of N45degreeE. What is the bearing of the tangent leaving the curves.

2. In incremental launching method of bridge construction, what are the measures adopted to enhance sufficient resistance of the superstructure during the launching process?

3.In designing concrete structures, normally maximum aggregate sizes are adopted with ranges from 10mm to 20mm. Does an increase of maximum aggregate size benefit the structures?

4.In the construction of a two-span bridge (span length = L) by using span-by-span construction, why is a length of about 1.25L bridge segment is constructed in the first phase of construction?

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