Table of Contents
What is vertical clearance?
Vertical clearance means the minimum vertical distance between the sidewalk and the lowest point of a banner. Sample 1. Vertical clearance means an unobstructed vertical passage space required along a highway or a sidewalk within a highway; Sample 1.
What is railway clearance?
The difference between the structure gauge and the loading gauge is called the clearance. The amount of clearance between the loading gauge and the structure gauge depends on the speed of the train, due to the train wobbling, so a train may be able to get past a restricted clearance by travelling at slow speed.
What is freeboard of bridge?
Freeboard at any point is the difference between the highest flood level after allowing for the afflux if any and the formation level of the road embankment on the approaches or top level of guide bunds at that point.
What is bridge clearance?
Vertical clearance is the critical height under a structure that will accommodate vehicular and rail traffic based on its design characteristics. This height is the least height available from the lower roadway surface (including usable shoulders) or the plane of the top of the rails to the bottom of the bridge.
What is the minimum vertical clearance?
The specific standards for vertical clearance adopted for the Interstate System maintain its integrity for national defense purposes. On Interstates, the clear height of structures shall not be less than 16 feet (4.9 meters) over the entire roadway width, including the useable width of shoulder.
How is rail gauge measured?
The gauge of a railroad track is simply the distance between the two running rails. This distance is measured against the inside faces of the rail heads at some distance down from the top of the rails. This distance down is known as the “gauge plane”.
What is broad gauge in Indian Railways?
A broad-gauge railway is a railway with a track gauge (the distance between the rails) broader than the 1,435 mm ( 4 ft 81⁄2 in) used by standard-gauge railways.
What is substructure of bridge?
The substructure of the bridge consists of the portion of the bridge that supports the entire structure on the given surrounding soil. Substructure: The substructure consists of the portion of the bridge that supports the entire structure on the given surrounding soil.
What is dam freeboard?
Freeboard is the vertical distance of a dam crest above the maximum reservoir water level. It is clear that the goal of constructing completely stable dams cost effectively is challenging.
What is Garmin vertical clearance?
Vertical Clearance. Sets the minimum height of a bridge or obstacle, based on chart data, that your boat can safely travel under. Shoreline Distance. Sets how close to the shore you want the Auto Guidance path to be placed. The Auto Guidance path may move if you change this setting while navigating.
What is the difference between free board and clearance in railway?
In Indian Railway standard foundation & substructure code, both free board and clearance are defined. Both are related to Design discharge. Clearance is related to bridge while free board is related to approach embankment and guide bank , is enumerated below.
What is the meaning of freeboard on a railway bridge?
Freeboard is the extra clearance provided from the highest flood level (HFL) to the soffit (underside)of the bridge so that in the event of extraordinary flood over and above the HFL water may not overflow the bridge. It is usually 1 to 2 m. In Indian Railway standard foundation & substructure code, both free board and clearance are defined.
What is the freeboard design elevation section?
This section describes the process in determining design elevation and considerations when evaluating appropriate freeboard requirements. This section builds off the concepts in Sections 2 and 3, which provided the technical background on coastal water levels and wave dynamics.
What is the difference between levee and bridge freeboard?
Levee freeboard should be confirmed as occasionally exceptions to the minimum freeboard requirements are approved by FEMA. Bridge freeboard is the clearance between the lower limit of the bridge superstructure or the bottom of the culvert top slab and the Freeboard High Water surface elevation.