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The vehicles of Personal Rapid Transit (PRT, also called "podcars"), as known by the term of "Personal", an individual transportation system that each vehicle can seat and carry two to six people, wait for users at each station, without a specifically set route, ready to take users non-stop, directly to his or her destination.
Once users get in and select , he or she go straight to his or her destination, without halfway stops and transfers.
The theory of the PRT approach is that users can be custom-routed from where they are, to precisely where they need to go. A passenger would just summon a personal robot pod (vehicle) and has it routed straight to his or her destination. Namely, users PRT vehicle bypasse all the stations along the way.
All vehicles are eco-friendly and powered by electricy. The lightweight little cars help the railroad construction cut costs.
(Namely, the lightweight little cars (in many designs, using variants of automotive technology) would almost surely cost less than heavier, fullsize railcars. More importantly, the elevated guideways would supposedly be much cheaper because they wouldn't have to support as much weight. Furthermore, the little elevated stations would be expected to be smaller and significantly cheaper.)
Because most mass transit systems move people in groups over scheduled routes, which have certain inherent inefficiencies, PRT can be well used to supplement a mass transit service.
Also, narrow railroads make it easier connections with other transportations. Fine consturctions go well with the glamorous townscape.
Thus, PRT has its virtues of excellent access, public transportation and automobiles. In future, the revitalization of PRT will produce a great transformation in our transportation system.
After this paper is to analyze the advantage of PRT, some of the problems we must solve, and the railroad case of advanced countries, our study is to examine the necessary plans to establish PRT in Korea.
Comparison of Personal Rapid Transit with existing transport systems
| Similar to automobiles |
- Vehicles are small—typically two to six passengers
- Vehicles are individually hired, like taxis, and shared only with the passengers of one's choosing
- Vehicles travel along a network of guideways, much like a network of streets. Travel is point-to-point, with no intermediate stops or transfers
- Potential for on-demand, around-the-clock availability
- Stops are designed to be off the main guideway, allowing through traffic to bypass stations unimpeded
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| Similar to trams, buses, and monorails |
- A public amenity (although not necessarily publicly owned), shared by multiple users
- Reduced local pollution (electric powered)
- Passengers embark and disembark at discrete stations, analogous to bus stops or taxi stands
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[1] PRT(Personal Rapid Transit)는 Personal란 용어에서 알 수 있듯이 한량 당 2~6명 정도의 인원을 수송하는 개별적 교통시스템을 말하며 정해진 특정 노선이 없어, 이용자가 목적지를 선택하면 중간 정차나 환승 없이 목적지 도착이 가능하다. 
Personal Rapid Transit (PRT, also called "podcars"), as known by the term of "Personal", an individual transportation system that each vehicle can seat and carry two to six people.
Vehicles wait for users at each station, without a specifically set route, ready to take users non-stop, directly to his or her destination.
Once you get in and select , you go straight to your destination, without halfway stops and transfers.
The theory of the PRT approach is that users can be custom-routed from where they are, to precisely where they need to go. A passenger would just summon a personal robot pod (vehicle) and have it routed straight to his or her destination. Users PRT vehicle bypasse all the stations along the way.
Most mass transit systems move people in groups over scheduled routes, which have certain inherent inefficiencies.[
The theory of the PRT approach is that users can be custom-routed from where they are, to precisely where they need to go. A passenger would just summon a personal robot pod (vehicle) and have it routed straight to his or her destination.
Likewise, PRT promoters predict amazingly low operating costs, mainly because of automated, driverless operation.
[2]  따라서 노선이 정해진 시스템이라는 약점을 안고 있는 기존의 중·대형 대중교통수단의 문제점을 PRT는 훌륭하게 보완할 수 있다.
PRT could be well used to supplement a mass transit service, which have a serious disadvantage of a set route system.
The lack of decent public transport is a great/major/serious disadvantage. (출처:옥스포드 예문)
버젓한 대중교통편이 없다는 것은 큰/주요한/심각한 약점이다.
약점을 보완하다 make up for the weak points in
Perhaps most importantly, PRT systems offer a more viable long term alternative to cars because they too offer privacy and the ability to choose one's own schedule.[3] Such a system may in fact allow for quicker transportation than cars in some contexts, considering that automated vehicles avoid slowing unnecessarily.
[3]  차량은 전기로 움직여 배기가스가 전혀 없어 환경 친화적이고, 경량의 차량은 건축비를 절감시킨다.
All vehicles are eco-friendly and powered by electricy .
The lightweight little cars (in many designs, using variants of automotive technology) would almost surely cost less than heavier, fullsize railcars. More importantly, the elevated guideways would supposedly be much cheaper because they wouldn't have to support as much weight. Furthermore, the little elevated stations would be expected to be smaller and significantly cheaper.
건축비the cost of building[construction] 비용을 절감하다curtail[cut down] expenses
Bae Pan-sool, an official at the Petroleum Industry Division of the Commerce Ministry, stresses that the best solution would be to secure alternative sources of energy that cost less and are environment-friendly. (출처: The Korea Herald)
산업자원부 석유산업과 배판술씨는 최선의 해결책은 싸고 환경친화적인 대체 에너지를 확보하는 것이라고 강조한다.
All current designs are powered by electricity. In order to reduce vehicle weight, power is generally transmitted via lineside conductors rather than using on-board batteries.
And it would all be incredibly cheap, we were told: "To build a metropolitan PRT system, the tag would be on the order of $4 million per two-way mile, according to recent cost analyses" gushed Popular Science. Compared to $27 to $50 million a mile – the price for "advanced" rail systems and subways, according to the magazine – "personal rapid transit looks like a bargain." (All figures in US dollars.)
[4] 또한 좁은 선로는 다른 교통수단과의 연계를 쉽게 해주고, 세련된 건축이 가능해 도시미관과 잘 어우러진다.
Also, narrow railroads make easier connections with other transportations and fine consturctions go well with the beautiful townscape.
make a connection, connexion (열차․비행기 등이) 연계하다 townscape [táunskèip]
This furniture and these small objects go well with Moroccan pieces. (출처: The Korea Herald)
“이 가구와 조그만 장신구들은 모로코 가구와 잘 어울립니다.
[5] 이와 같이 PRT는 뛰어난 접근성과 함께 대중교통과 자동차의 장점을 모두 가지고 있어, 앞으로 PRT가 활성화 된다면 우리나라 교통체계에 커다란 변화를 일으킬 것이다.
Like so, PRT have its virtues of excellent access, public transportation and an auto. In future, the revitalization of PRT will produce a great transformation in our transportation system.
Residential conditions should also look up, the Finance Ministry said, as a train will be installed to cut the traveling time between Seoul and the major airports. (출처: The Korea Herald)
재경부는 공항에서의 서울 도심 접근성을 높이기 위해 다양한 노선에 철도를 건설할 계획임에 따라 주거 여건도 개선될 거라고 말했다.
The main considerations of the screening committee were balanced national development, road access, environmental conditions and the cost of development. (출처: The Korea Herald)
심사위원회가 가장 고려하는 사항은 국가의 균형발전, 도로망(접근성), 환경조건(환경성), 개발비용(경제성) 등이었다.
I know your faults as well as your virtues. (출처: 동아 프라임 한영사전)
너의 장점과 단점을 모두 알고 있다
The government will develop 330,000 square meters at Incheon International Airport for commercial activities as part of its efforts to make Incheon a business hub for Northeast Asia and revitalize the regional economy. (출처: The Korea Herald)
정부는 인천을 동북아의 경제중심으로 만드는 한편 지역경제 활성화를 위한 노력의 일환으로 인천국제공항 내에 33만 평방미터 규모의 상업지구를 개발할 예정이다.help jumpstart the industries
The U.S. presidential elections are bound to bring huge changes on the Korean Peninsula. (출처: The Korea Herald)
“미국 대선은 한반도에 커다란 변화를 가져올 것이다.
It will produce a great transformation in the arms acquisition system, a senior military official said. (출처: The Korea Herald)
이는 무기조달 시스템의 커다란 변화를 낳을 것이다”라고 고위 군 관계자는 말했다.
[6] 본 논문에서는 PRT의 장점과 해결해야 할 문제점, 그리고 현재 진행 중인 철도 선진국의 사례를 분석하고, 앞으로 PRT가 우리나라에 정착하기 위해 필요한 방안에 대해 검토하고자 한다.
After this paper is to analyze the advantage of PRT, some of the problems we must solve, and the railroad case of advanced countries, our study is to examine the necessary plans to establish PRT in Korea.
문제를 신중히 검토하다 give a problem one´s careful consideration;give careful consideration to a problem
 면밀히 검토하다 examine thoroughly[closely]
This custom is not firmly established in agricultural districts. (출처: 동아 프라임 한영사전)
이 관습은 농촌 지역에서는 아직 정착하지 못했다
We have completed the duct systems for the telephone lines, built around the Gyeongui (Seoul-Gaeseong) railway, and cable installation is currently under way. (출처: The Korea Herald)
“우리는 경의선 (서울-개성) 철도 주변에 전화 회선의 도관시스템 공사를 완료했고 현재 케이블 설치 작업이 진행 중이다.
Those names have come up during our ongoing investigations. (출처: The Korea Herald)
“이들의 이름이 현재 진행중인 조사 과정에서 드러났다.
So while there is an economic correction at work, it could prove relatively mild. (출처: 세계일보 WT논평)
따라서 현재 진행중인 경제적인 시정은 비교적 낮은 수준이 될 가능성이 있다.
Improving the regulatory environment, stepping up communication with foreign investors, strengthening the local financial market and creating a network with global financial institutions were cited as some of the bigger problems the government must solve. (출처: The Korea Herald)
규제환경 개선과 외국인투자자와의 커뮤니케이션 증대, 국내 금융시장 강화, 세계적 금융기관과의 네트워크 구축이 정부가 반드시 해결해야 할 큰 문제점의 일부로 거론됐다.
The movement is now under way. (출처: 동아 프라임 한영사전)
운동은 현재 진행중이다
 A conceptual map of a PRT system. Personal Rapid Transit concept requires dense penetration of neighborhoods and commercial areas with a labyrinth of elevated guideways and stations.
 One major environmental problem
 Simulation of an elevated PRT guideway for Minneapolis curving over an intersection – and this is a single-track segment, without emergency walkway or drip pan.
[Simulation: Ken Avidor]
 Personal Rapid Transit stations are
 Simulation of station for SkyTran suspended-vehicle PRT system proposed for Seattle. Stairway-only access would be illegal in reality. Station is simulated in a large open plaza, not a more typical narrow street. PRT promoters often downplay design and visual impact of proposed stations.
 Walnut station (downtown) of Morgantown's PRT system hints at what an actual PRT station might look like. in confined downtown corridors, it would form a "lid" over street.
[Photo: Jon Bell]
 Simulation of a PRT station works perfectly in cyberspace – but the small passenger volumes assumed for the little pods are disconnected from the surges of passenger flows which occur in reality.
 AirTrans PRT at Dallas-Ft. Worth Regional Airport: Even with van-sized vehicles in 2-car trains, system experienced "traffic jams" handling peak passenger volumes.
 PRT concept envisions one-way loops throughout urban area. To go opposite direction, passengers must ride car "wrong way", then double back. Cars unable to enter crowded stations must stay on loops in holding patterns. Energy-efficiency, anyone?
 West Virginia University PRT system at Morgantown: As installation cost soared above promoters' original claims, federal government soured on PRT.
[Photo: L. Henry]
 Raytheon PRT 2000 car on Massachusetts test track in 1997. Actual costs quickly exceeded designers' dreams.
[Photo: Raytheon]
 in contrast, LRT may lack some of the glamorous gadgetry, but it does offer a long, proven track record as a transit mode that works well, that is affordable and cost-effective, that excites the public and attracts passengers, that has proven its ability to reliably handle large volumes of riders, and that stimulates adjacent transit-oriented development. Planners and decisionmakers need to decide: Which are they going to believe – computer simulations, or the real-world evidence before their own eyes?
[Photo of Melbourne tram: Mal Rowe]http://www.lightrailnow.org/facts/fa_prt001.htm
http://www.cprt.org/CPRT/Home.html
http://faculty.washington.edu/jbs/itrans/prtquick.htm
http://en.wikipedia.org/wiki/Personal_rapid_transit
[Cartoon by Ken Avidor. Used with permission.]http://www.lightrailnow.org/facts/fa_prt001.htm
PRT designs
The following table summarizes several well-known PRT designs.
Animated diagram of a right-hand railroad switch, rail track A divides into two: track B (the straight track) and track C (the diverging track)
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