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PapPRELDlWARY PLANNING

ACRO

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TURNER ONPLANNI NG FORbranch of the Northern Line is toverse-direction cross-platform inalso be arranged at Kings Crossfacilities. These will probably nointerchange elsewhere on the line,9. At Highbury, the scheme is ttunnels to give City workers easyinterchange will be possible with

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TURNER ON PLANNINGFOR Atracks and three in lifting bays for overhaul. In addition, twenty-fouTwo washing machines will be buwashed as they go out of service. Awill also be provided at this site.25. At Finsbury Park, a comexithus linking the new line with theT h i s facilitywill allow maintenanc

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24 TURNER ONPLANNING FORoperators, and also to assist in thcover the capacities of a tube linescalators.Capacity of a tube line34. This depends mainly oninfluenced by the length of station-ssystem, and the rolling-stock char

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TURNER ON PLANNING FOR ARolling-stock capacity

39. The capacity of a modem standing, whereas that of a DistricThese figures assume a densityfor stactually counting passengers, howeveight-car tube train sometimes numnearly 1,200. The corresponding av0.61. This gives the total passenge

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26 =NWON PLANNIN~ FORpossible to carry out controlled tration of boys. It is realized thpassengers, but from this experunderstanding of the curves in F44. Observations have also bcurves in Fig. 5 were drawn, but

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TURNER ON PLANNING FOR A45. Some of the more importan

(i) Subways and stairs of 4-ftcentration of people, have their width. For widths oin multiples of passengers(ii) When a subway becomes due to the natural desire t

these observationscan be summari

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28 TURNER ON PLANNING FO R

Type of footwayover 4 ft wide

Levelsubway .

Freepassengerflow :m.p.h.3 .6

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TURNER ON PLANNING FO R Abut more room would be availablean experiment would be expensivvaried greatly, the number of accid54. It is worth noting that theescalators at tube stations has increper million passengers. This is an

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90 TURNER ON PLANNING FORA56. The effect of tunnelling undnegligible, but the cost of the actual t

it cheaper to drive a tunnel as straigfollowing the roads. For a numberpolicy in constructing their main linrad. This lessens the need for spediameter on curves.57. The designs of curvesand tra

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TURNER ON PLANNING FORCentral Line at Oxford Circus if pOxfordCircusis to be provided. Afor thenew line if it is to thread itssewers, apart from driving it verythis be done it would not be possibplatform interchange at Highburstation, making either the hump or

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32 TURNER ON PLANNIN~ FOR A69. Most of the underground raworld havebeen of the subsurface tbut so far as the Author is aware nostock.70. For many years boltedcast-tunnelling. Nowadays, many diffesome have beentried out. They carequire both bolting and grouting,

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TURNER ONPLANNING FORAfrom this that an ordinary tubegreatly increasetrain resistance abit would be financially worthwhthan normal is the question to be

79 . If a smooth-fmished concrit is estimated that train resistanceeffect of this is shown by the chain-a tunnel of approximately 12 ft 6

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34 TURNER ON PLANNING FOR

80. In order that the magnituappreciated, some of the more im81. Victoria. Because the maand evening peak periods will be new tube booking hallhas been sitestation. This new booking hall

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TURNER ON PLANNING FOR A

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36 TURNER ON PLANNING FOR

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TURNER ON PLANNING FORbuilding these but also the cost ocaused to passengers.Afterconsidbooking hall for all lines, or wheeventually decidedto enlarge the hall. This is possible on two sidescalator and to a subsurface railtraffic flows have been calculatedthe new station. The existing traf

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38 TURNER ON PLANNING FORAline operates at present between Finideal interchange it will be necessaFig. 13 shows the suggested layout that a joint station booking hall shfor the existing North London Line88. Finsbury Park. By divertinlevel at this station, the two underavailable for both the proposed re-

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P R E LlMl

Scale: I In.:

GANTS HILL FIG. 2. TYPICALCROSS-SECTION OFGANTS HILL MOSCOWSTATION COMPARED WI TH A TYPICAL MOSCOW TUBE STATION

0

Duum. lOO

W i l l i a m Clowes & Sons, Limited: London,

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PLATE 2 PRELIMIN

I

', \,

" 7.1., '.,--'" / ' \FIG. 9. PLAN OFPROPOSED STATION AT VICTORIA

F. S. TURNER