Often changes in the direction are necessitated in highway alignment due to various reasons such as topographic considerations, obligatory points.
The geometric design elements pertaining to horizontal alignment of highway should consider safe and comfortable movement of vehicles at the given design speed of the highway.
It is therefore necessary to avoid sudden changes in direction with sharp curves or reverse curves which could not be safely and conveniently negotiated by the vehicles at design speed.
Improper design of horizontal alignment of roads would necessitate speed changes resulting m higher accident rate and increase in vehicle operation cost.
Often changes in the direction are necessitated in highway alignment due to various reasons such as topographic considerations, obligatory points.
The geometric design elements pertaining to horizontal alignment of highway should consider safe and comfortable movement of vehicles at the given design speed of the highway.
It is therefore necessary to avoid sudden changes in direction with sharp curves or reverse curves which could not be safely and conveniently negotiated by the vehicles at design speed.
Improper design of horizontal alignment of roads would necessitate speed changes resulting m higher accident rate and increase in vehicle operation cost.
Highway planning and alignment: Different modes of transportation – historical Development of road construction- Highway Development in India –Classification of roads- Road pattern
– Highway planning in India- Highway alignment - Engineering Surveys for alignment – Highway Project- Important Transport/Highway related agencies in India. PMGSY project.
Introduction about IRC, NRRDA
Alignment: The position or the layout of the central line of the highway on the ground is called the alignment.
Highway Alignment includes both
a) Horizontal alignment includes straight and curved paths, the deviations and horizontal curves.
b) Vertical alignment includes changes in level, gradients and vertical curves.
Transition curve and Super-elevation
Transition Curve
Objectives of Transition Curve
Properties Of Transition Curve
Types Of Transition Curve
Length Of Transition Curve
Superelevation
Objective of providing superelevation
Advantages of providing superelevation
Superelevation Formula
Numerical
Highway planning and alignment: Different modes of transportation – historical Development of road construction- Highway Development in India –Classification of roads- Road pattern
– Highway planning in India- Highway alignment - Engineering Surveys for alignment – Highway Project- Important Transport/Highway related agencies in India. PMGSY project.
Introduction about IRC, NRRDA
Alignment: The position or the layout of the central line of the highway on the ground is called the alignment.
Highway Alignment includes both
a) Horizontal alignment includes straight and curved paths, the deviations and horizontal curves.
b) Vertical alignment includes changes in level, gradients and vertical curves.
Transition curve and Super-elevation
Transition Curve
Objectives of Transition Curve
Properties Of Transition Curve
Types Of Transition Curve
Length Of Transition Curve
Superelevation
Objective of providing superelevation
Advantages of providing superelevation
Superelevation Formula
Numerical
A presentation on highway geometric design which includes:
definition,
Goals,
Road Alignment,
Its cross section,
Pavement Design, &
Theory about super Elevation
Road Safety Powerpoint Presentation, Action plan for traffic safety. Road safety statistics, Steps to be taken to prevent road accidents etc.
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Road Safety / Highway Safety Tips for Parents and Teachers, How to prevent Ro...Road Safety
Road Safety / Highway Safety Tips for Parents and Teachers. How to prevent Road Accidents, Road Accient prevention, Safety Tips, Child development, Bringing up children. Child Character formation. School Projects, Safety Essay, Road Safety Training, Traffic Safety Training. How to bring down Road Accidents. Traffic Safety presentation. Road Safety Slide, Pareting tips, How to avoid accidents, How to reduce road accidents. How to save lives.
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Friction Considerations : The friction of skid resistance between vehicle tyre and pavement surface is one of the factors determining the operating speed and the minimum distance requires for stopping of vehicles.
Unevenness : The longitudinal profile of the road pavement has to be even' in order to provide a good riding comfort to fast moving vehicles
Light Reflecting Characteristics : Night visibility depends upon the colour and light reflecting characteristics of the pavement surface. The glare caused by the reflection of head lights is considerably high on wet pavement surface than on the dry pavement.
Drainage of Surface Water
2137ad - Characters that live in Merindol and are at the center of main storiesluforfor
Kurgan is a russian expatriate that is secretly in love with Sonia Contado. Henry is a british soldier that took refuge in Merindol Colony in 2137ad. He is the lover of Sonia Contado.
Explore the multifaceted world of Muntadher Saleh, an Iraqi polymath renowned for his expertise in visual art, writing, design, and pharmacy. This SlideShare delves into his innovative contributions across various disciplines, showcasing his unique ability to blend traditional themes with modern aesthetics. Learn about his impactful artworks, thought-provoking literary pieces, and his vision as a Neo-Pop artist dedicated to raising awareness about Iraq's cultural heritage. Discover why Muntadher Saleh is celebrated as "The Last Polymath" and how his multidisciplinary talents continue to inspire and influence.
2137ad Merindol Colony Interiors where refugee try to build a seemengly norm...luforfor
This are the interiors of the Merindol Colony in 2137ad after the Climate Change Collapse and the Apocalipse Wars. Merindol is a small Colony in the Italian Alps where there are around 4000 humans. The Colony values mainly around meritocracy and selection by effort.
Hadj Ounis's most notable work is his sculpture titled "Metamorphosis." This piece showcases Ounis's mastery of form and texture, as he seamlessly combines metal and wood to create a dynamic and visually striking composition. The juxtaposition of the two materials creates a sense of tension and harmony, inviting viewers to contemplate the relationship between nature and industry.
10. Ranges for Design Speed Type of Road way Terrain Rural Urban US (mi/h) Metric (km/h) US (mi/h) Metric (km/h) F R E E W A Y LEVEL 70 110 50min 80min ROLLING 70 110 50min 80min MOUNTAINOUS 50-60 80-110 50min 80min
11. Ranges for Design Speed Type of Road way Terrain Rural Urban US (mi/h) Metric (km/h) US (mi/h) Metric (km/h) A R T E R I A L LEVEL 60-75 100-120 30-60 50-100 ROLLING 50-60 80-100 30-60 50-100 MOUNTAINOUS 40-50 60-80 30-60 50-100
12. Ranges for Design Speed Type of Road way Terrain Rural Urban US (mi/h) Metric (km/h) US (mi/h) Metric (km/h) C O L L E C T O R LEVEL 40-60 60-100 30+ 50+ ROLLING 30-50 50-80 30+ 50+ MOUNTAINOUS 20-40 30-60 30+ 50+
13. Ranges for Design Speed Type of Road way Terrain Rural Urban US (mi/h) Metric (km/h) US (mi/h) Metric (km/h) L O C A L LEVEL 30-50 50-80 20-30 30-50 ROLLING 20-40 30-60 20-30 30-50 MOUNTAINOUS 20-30 30-50 20-30 30-50
