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본 문서의 분량 : 98 페이지 |
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construction environmental geotechnical structures transportation water resources 1 areas of specialization
the science of safe and efficient movement of people and goods
transportation engineering 2
principles of highway engineering and traffic analysis
focus on ; roadways car travel by individuals pedestrian neighbors near the road transportation includes freight transportation air, rail, and water modes don’t address many issues: security, reliability, safety, environment 3 5 security and safety 6 7 reliability 유출 흐름 침투 계곡 하천 폭 progress of transportation mode 1765: diesel engine by james watt 1860: modern type engine 1903: airplane by wright, orville and wilbur history of american transportation
xxxx.xx.xx: expansion of r/w systems (interstate highway)
xxxx.xx.xx: traffic growth congestion environmental problem
1980: deterioration of highway structure management of
highway
1990: its, access management, hms.
8 교통 환경 문제 9 포장재료 개발 미비에 의한 우천시 안전성 문제 평탄한 도로-안전성 향상
녹색 교통 체계인가?
9
people, goods, and vehicle?
urban freeway(3 lane) typically 2400pcu/hour/lane
passenger occupancy 1.xxx-xxx.8 1.5
or 7200cars 10 surface street (major artery)
-600pcu/h/lane
2,700pep/hour or 1800 cars
people, goods, and vehicle?
11 a lane of buses 100buses/h/lane-> 800buses/hour (limited access) 50/bus:normal, 80/bus: crush capacity 50 person with 800 operations 40, pep/hour (new york : 56 people /h)
people, goods, and vehicle?
12 subway heavy rail-transit 2 person/train x 30(2 min headway) 60, pep/hour light rail transit: 19
people, goods, and vehicle?
13 미국 화물 수송 분담율 14 transportation volume (1) 15 미국 여객 수송 분담율 16 road use growth
1.00
1.50
2.00
2.50
3.00 (이하 생략)
