Outline of Preliminary Design 1) Choice from Station Preliminary Design of Station Facilities Is Conducted for the Following Two Stations
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8.2 Preliminary Design of Station Facilities 8.2.1 Preliminary Design of Station Facilities (1) Outline of Preliminary Design 1) Choice from Station Preliminary design of station facilities is conducted for the following two stations. Station name: ① Monumento (LRT Line 1) ② Magallanes (NR/MCX), Magallanes (LRT Line 3) 2) Preconditions Number of the users in future is projected based on the assumption for Case 4, underground through operation of NR/MCX, and through operation of Line 1 and Line 3 at Monumento as target year of 2015. 3) Outline of examination At Monumento (LRT Line 1) and Magallanes (LRT Line 3) stations, since the plan is to carry out improvements at existing station facilities which include separate platforms, only separate platforms shall be examined as the platform type. Since Magallanes (NR/MCX) is planned as a new station, island platforms and separate platforms shall be examined as alternative platform types. 4) A summary of the station facilities plans A summary of the station facilities plans is shown in next page. Items covered in the main text and appendices: ① Monumento (LRT Line 1) Main text : preconditions, preliminary calculations, outline drawings Appendices : outline plans, work procedure drawings ② Magallanes (NR/MCX) island platform Main text : preconditions, outline drawings Appendices : preliminary calculations, outline plans, work procedure drawings 8 - 12 Magallanes (NR/MCX) separate platforms Main text : no entries Appendices : preconditions, preliminary calculations, outline drawings Magallanes (LRT Line 3) Main text : preconditions, outline drawings Appendices : preliminary calculations, outline drawings of current conditions A summarization chart of the station facilities plans is shown on the following. Table 8.2.1 Summarization Chart of Station Facilities Plans Facility Magallanes Station Magallanes Station Monumento Station Station Name (NR/MCX) (LRT Line 3) Ground, underground Station structure Elevated station [Elevated station] station Platform type Separate Island (examination of [Separate] separate type finished) Platform width 7.0m [4.6m] 7.5m 2.4m [4.0m - 5.7m] and length 116m [102m] 210m 116m [127m] Totally covered Totally covered [Totally covered] Platform canopy 116 m [102 m] 210 m 116 m [127 m] Inner circle line: 1 ticket window [3 windows] Ticket issue 18 automatic ticket 23 automatic ticket machines Outer circle line: 14 automatic facilities machines ticket machines, 8 ticket windows [3 windows) 8 automatic ticket Inner circle line: 5 automatic Ticket inspection 17 automatic ticket barriers barriers ticket barriers [3 units] facilities 1 ticket barrier and guard window 1 ticket barrier and guard Outer circle line: 5 automatic window ticket barriers [3 units) Pavement 1F - free corridor 3F, for 2 people (general use), 24 units Concourse 1F - platform Pavement 1F - free corridor Escalators Concourse 3F - platform 2F, for 2 B1, for 2 people, 2 units 3F, for 1 person, 16 units people (general use), 4 units Total: for 2 people, 28 units Pavement 1F - free corridor 3F, also for wheelchair users, 2 units [Pavement 1F - ticket Concourse 1F - platform window/barriers and platform Elevators Concourse 3F - platform 2F, also B1, also for wheelchair for wheelchair users, 2 units 2F - free corridor 3F: also for Total: also for wheelchair users, users, 1 unit wheelchair users, 2 units] 4 units Pavement 1F - free corridor 3F: 5.6 m Concourse 1F - platform [Pavement 1F - free corridor Stairs Concourse 3F - platform 2F: B1: 2.6 m 3F] 2.4 m Width of free 15.0m (3F) 7.0m (1F) 3.4m [5.0m (3F)] corridor Line 1 single track (single PNR single track (single Work conditions platform) operation platform) operation User of station 314,000 persons/day 133,700 persons/day 131,900 persons/day area in 2015 40,800 persons/hour 17,400 persons/hour 17,100 persons/hour Note) Explanations in [ ] parentheses indicate quantities and structure, etc. 8 - 13 8.2.2 Outline Plan for Improvement of Monumento Station 1. Particulars of Monumento Station Improvement Plan In planning the station passenger facilities, calculation shall be carried out upon setting the particulars of each facility. (1) Projection of Future Users at Monumento Station Based on various data such as future population in the area around the station, the projected number of users at Monumento Station (in 15 years) is approximately 314,000 boarding and alighting passengers per day. Projected numbers of passengers traveling in each direction per hour during the rush hour are as shown below. Moreover, the rush rate is currently 12.3% (January 2000), but this shall be assumed to increase by 1% to 13% in consideration of future network development, etc. [99,400 people] [55,800 people] (12,900 people) (7,200 people) Inner circle line North.A Monumento Station Outer circle line Sourth.T (9,700 people) (11,000 people) Total (40,800 people) [74,300 people] [84,600 people] [314,000 people] Fig. 8.2.1 Future Boarding and Alighting Passengers at Monumento Station (hourly in rush hour) [per day] (2) Future Operating Plan The hourly number of trains during rush hour shall be 26 each on the inner and outer circle lines, and each train shall consist of four electric cars. (3) Track Structure and Work Conditions Track structure in the area of new Monumento Station construction is indicated below. 1) Track gradient: 0.2% 2) Distance between track centers: 3.2 m or more 8 - 14 Work conditions: when carrying out platform improvement, insert simple turnouts before and after the station and adopt single track operation (single platform). (4) Passenger Facilities (existing) 1) Station building : elevated station 2) Platform : separate, platform length approximately 102 m, platform width approximately 4.6 m, platform height R. L - 690 mm, distance between track center and platform edge 1,370 mm 3) Platform canopy : length approximately 102 m (5) Outline Plan of Station Facilities 1) Calculation of platform width Platform width is calculated based on the projected number of boarding and alighting passengers in future. ① Required platform width on inner circle line (Monumento → North Ave.) γ •B= B1 + B2 + 1/2 γ = 0.2×(Pa/n) + 2Pb/31n + B : platform width B1 : width occupied by passengers waiting to board trains B2 : width occupied by passengers alighting from trains onto the platform γ : necessary width for pillars and train refuge, etc. Bench: 0.4 m B2 = 2Pb/31n (case of Pb/n < 6.4 ln) or 13n/3 (case of Pb/n > 6.4 ln) Pa : peak boarding passengers per train (assuming an average of 1 electric train per hour during rush hour) 7,200 people/26 trains≒280 people Pb : peak alighting passengers per train (assuming an average of 1 electric train per hour during rush hour) 12,900 people/26 trains≒500 people l : 1 train length≒26.5 m (average) n : cars per train = 4 cars From the above Pb/n = 500/4 = 125<6.4ln = 6.4×26.5×4≒678 Therefore: B2 = 2Pb/3ln = 0.2×(280/4)1/2 + 2×500/(3×26.5×4) + 0.4≒5.2 m 8 - 15 ② Required platform width on outer circle line (Monumento → South T.) γ •B= B1 + B2 + 1/2 γ = 0.2×(Pa/n) + 2Pb/31n + Pa = 9,700 people/26 trains≒370 people Pb = 11,000 people/26 trains≒420 people Pb/n = 420/4 = 105<6.4ln = 6.4×26.5×4≒678 Therefore: B2 = 2Pb/3ln = 0.2×(370/4)1/2 + 2×420/(3×26.5×4) + 0.4≒5.0 m 2) Calculation of platform width (calculation from structures on platforms, etc.) In addition to the calculations indicated in 1), since platform width is also sometimes computed from the width of stairs and escalators on platforms and the distance between these structures and platform edges, examination of these items is carried out. Required platform width: • Distance with pillars on platforms shall be 1 m or more • Distance with overpasses and underpasses, etc. shall be 1.5 m or more. Therefore, on separate platforms, minimum distances will be as follows (see figure): Platform width = 1.5 + maximum width of structures on platforms However, from the viewpoint of wheelchair use and safety, a minimum distance of 2.0 m is desirable, in which case the following expression will be adopted: Platform width = 2.0 + maximum width of structures on platforms Required platform width 1,500 mm Calculated value 1,650 mm or more or more if 2 people 2,000 mm 300 mm 300 mm 200 mm or more Stairs ESC + Fig. 8.2.2 Calculation of Platform Width 8 - 16 ① Maximum Width of Structures on Platforms a) Inner Circle Line Platform i) Calculation of stair width and escalator width Calculate from the projected number of boarding and alighting passengers (per hour during rush hour) = 20,100 people (7,200 boarding passengers + 12,900 alighting passengers). It shall be assumed that 2 stairs and 2 escalators (1200 type, for 2 people) are installed on the platform. ○ 2 escalators (1200 type, for 2 people) Transportation capacity of escalators: 6,750×2 units = 13,500 people/hour ○ Stair width Necessary stair width (20,100 - 13,500)/1,500≒4.4 m Width per staircase: 4.4/2 = 2.2 m > minimum width = 1.5 m ii) Stair walls, handrail walls, etc.≒1.0 m iii) Maximum width of structures on platforms = Stair width and escalator width + stair wall, handrail wall, etc. = Stair width 2.2 m + escalator width 1.65 m + 1.0 m = 4.85 m iv) Platform width Platform width = 2.0 + maximum width of structures on platforms = 2.0 + 4.85 = 6.85≒7.0 m b) Outer circle line i) Calculation of stair width and escalator width Calculate from the projected number of boarding and alighting passengers (per hour during rush hour) = 20,700 people (9,700 boarding passengers + 11,000 alighting passengers).