Randy Olson Posted in analysisdata visualizationmachine learning Last week, Tracy Staedter from Discovery News proposed an interesting idea to me: Planning the road trip One of the hardest parts of planning a road trip is deciding where to stop along the way.
Macadam Road construction requires the creation of an engineered continuous right-of-way or roadbed, overcoming geographic obstacles and having grades low enough to permit vehicle or foot travel: A variety of road building equipment is employed in road building.
Storm drainage and environmental considerations are a major concern. Erosion and sediment controls are constructed to prevent detrimental effects. Drainage lines are laid with sealed joints in the road easement with runoff coefficients and characteristics adequate for the land zoning and storm water system.
Drainage systems must be capable of carrying the ultimate design flow from the upstream catchment with approval for the outfall from the appropriate authority to a watercoursecreekriver or the sea for drainage discharge.
Approval from local authorities may be required to draw water or for working crushing and screening of materials for construction needs. The topsoil and vegetation is removed from the borrow pit and stockpiled for subsequent rehabilitation of the extraction area. Side slopes in the excavation area not steeper than one vertical to two horizontal for safety reasons.
Trees in the road construction area may be marked for retention. Compensation or replacement may be required if a protected tree is damaged. Much of the vegetation may be mulched and put aside for use during reinstatement. The topsoil is usually stripped and stockpiled nearby for rehabilitation of newly constructed embankments along the road.
Stumps and roots are removed and holes filled as required before the earthwork begins. Final rehabilitation after road construction is completed will include seeding, planting, watering and other activities to reinstate the area to be consistent with the untouched surrounding areas.
Blasting is not frequently used to excavate the roadbed as the intact rock structure forms an ideal road base. When a depression must be filled to come up to the road grade the native bed is compacted after the topsoil has been removed.
The fill is made by the "compacted layer method" where a layer of fill is spread then compacted to specifications, under saturated conditions. The process is repeated until the desired grade is reached. The lower fill generally comprises sand or a sand-rich mixture with fine gravel, which acts as an inhibitor to the growth of plants or other vegetable matter.
The compacted fill also serves as lower-stratum drainage. Select second fill sieved should be composed of graveldecomposed rock or broken rock below a specified particle size and be free of large lumps of clay. Sand clay fill may also be used.
The roadbed must be "proof rolled" after each layer of fill is compacted.
If a roller passes over an area without creating visible deformation or spring the section is deemed to comply.A road is a thoroughfare, route, or way on land between two places that has been paved or otherwise improved to allow travel by foot or some form of conveyance, including a motor vehicle, cart, bicycle, or horse..
Roads consist of one or two roadways (British English: carriageways), each with one or more lanes and any associated sidewalks (British English: pavement) and road verges.
The Best Road Trips in the United States Most Popular Road Trip Routes We've ranked the best road trips in the United States based on average rating and number of route reviews, the number of people who have taken a trip or wish they could take a road trip.
The ultimate holiday experience. The team at The American Road Trip Company passionately believe that our road trips discovering North America's vibrant cities, wonderful national parks and scenic highways offer the ultimate holiday experience. Last week, Tracy Staedter from Discovery News proposed an interesting idea to me: Why not use the same algorithm from my Where’s Waldo article to compute the optimal road trip across every state in the U.S.?
Visiting every U.S. state has long been on my bucket list, so I jumped on the opportunity and opened up my machine learning tool box for another quick weekend project.
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