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T.P.D.M.V.2.H (v) The vehicle proceeds towards the "Give Way* line on a path whose centre line is initially 1m away from the nearside channel or kerb of the approach arm; (vi) Then either :~ (a) It proceeds towards the central island of the roundabout passing through a point not less than 1m from the nearside channel or kerb; or (b) "Where a subsidiary traffic island exists, it is assumed to pass whichever side of the island involves the least deflection; (vii) The vehicle is then assumed to continue on a smooth path with its centre line never passing closer than 1m from the centre island» Based on the foregoing, which is diagrammatically represented in Brg. No* 4*5«A.1, the centre line of the most realistic path that a vehicle would take in its complete passage through the junction is drawn on a 1/500 scale using a flexicurve or similar. More than one line should be drawn and the most critical path considered. The entry path curvature is taken to be the tightest radius over a 20 - 25 m length in the vicinity of the "Give Way" line (i.e. between X and Y on Drg. No. 4.5.A.1). The radius should be measured using a suitable template.
Example of Use of Roundabout Capacity Equation 1, It is required to assess the viability of a roundabout layout at the junction between a Dual 2 and a Single 2 road* 2. The traffic information available Indicates the following design year flows :~ 300 1SO 400 800 AflL o -300 •600 •300 200 400 200 The flows on the roundabout and its entries therefore would be :~ 600 1600 900 ' 1200 800 3* A roundabout layout is prepared with the following design characteristics .*- ARM v(m) e(m) LOO POP H( degrees) S SOUTH WEST HOHTH EAST 3.65 7.30 3.65 7.30 7.30 10.50 7.30 10.50 25.0 25.0 25.0 25.0 20.0 20.0 20.0 20.0 63.0 63.0 63.0 63.0 30.0 30.0 30.0 30.0 0.23 0.20 0.23 0.20
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§ • abc (*H#28572048 SHU ' 1999/
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Transport Planning & Design Manual
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T.P.D.M.V.2.1 - ' »1 PURPOSE 1 -1
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VOLUME1jTUNNELS Chapters 1. Introdu
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T.P.D.M.V.2.2 (Al/2001) Section Con
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T.P.D.M.V.2.2 (Al/2001) 2.1 Referen
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T.P.D.M.V.2.2 (Al/2001) Table 2.2.1
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T.P.D.M.V.2.2 (Al/2001) Table 2.2.1
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T.P.D.M.V.2.2 (Al/2001) Distance be
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T.P.D.M.V.2.2 (Al/2001) Table 2.2.2
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T P.D.M.V.2.2 (Al/2001) Table 2.2.2
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T.P.D.M.V.2.2 (Al/2001) Table 2.2.2
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MINIMUM KERB TO KERB CLEARANCE MINI
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MINIMUM KERB CLEARANCE TO KERB MINI
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MINIMUM WALL TO WALL CLEARANCE MINI
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T.P.D.M.V.2.2 BUS DAIMLER FL££TUN
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T P n Twf V 7 T.P.D.M.V.2.2 (Al/20
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T.P.D.M.V.2.2 T.P.D.M.V.2.2 (Al/200
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T.P.D.M.V.2.2 (Al/2001) 2.4 Design
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T.P.D.M.V.2.2 (A 1/2001) 2.4.2 Esti
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T.P.D.M.V.2.2 2.4.3 Peak Hourly Flo
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Revised in December 2001 TRANSPORT
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T.P.D.M.V.2.3 (Al/2001) 3.7 Pedestr
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T.P.D.M.V.2.3 (Al/2001) Diagrams 3.
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T.PD.M.V.2.3 (Al/2001) 22. Providin
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T.PD.M.V.2.3 (Al/2001) 33 Road Alig
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T.P.D.M.V.2.3 (Al/2001) 33.2 Design
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T.P.D.M.V.2.3 (Al/2001) For Radii b
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T.P.D.M.V.2.3 (Al/2001) Table 3.3.4
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T.P.D.M.V.2.3 (Al/2001) (b) For 80
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T.PJD.M.V.2.3 (Al/2001) 3.3.7 Verti
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T.P.D.M.V.2.3 (Al/2001) 33.8 Climbi
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tft D.M,V. 2.J 10Q1 'Read Arrows'tr
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T,R0,H*V. 23 mOoubit contiimqys whi
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T.P.D.M.V.2.3 0 10,000 20,000 3WJQO
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T.P.D.M.V.23 (Al/2001) 3.4. The Roa
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T.P.D.M.V.2.3 (Al/2001) 3.4.2.7 The
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T.P.D.M.V.2.3 (Al/2001) 3.4.4 Widen
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TYPE A TYPE FOR LIGHT AND MEDIUM GO
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T.P.D.M.V.2.3 (Al/2001) 3.4.7 Centr
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T.PD.M.V.2.3 (Al/2001) 3.4.7.13 Isl
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T.P.D.M.V.2.3 (Al/2001) 3.4.9 Verge
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T.P.D.M.V.2.3 (Al/2001) (vi) there
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T.P.D.M.V.2.3 (Al/2001) 3.4.11 Foot
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T.P.D.M.V.2.3 (Al/2001) (vi) Advice
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T.P.D.M.V.2.3 (A1/2001) 7SO OR 1Q O
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T.RD.M.V. rwwi¥f«%i ** SE6 SEOTtQ
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T.RD.M.V, 2,3 (A1/2001) oaa, VIR6E
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T.P.D.M.V.2.3 3.5 Highway Clearance
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T.PD.M.V.2.3 (Al/2001) 3.5.2 Horizo
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T.PD.M.V.2.3 (Al/2001) 3.6.2 Locati
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T.RD.M.V.2.3 LOT BOUNDARY PRIVATE E
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T.P.D.M.V.2.3 t N X X X «. I B VIS
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T.P.D.M.V.2.3 (Al/2001) (c) (d) Nee
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T.P.D.M.V.2.3 (Al/2001) 3.7.2 At-Gr
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T.PD.M.V.2.3 (Al/2001) 3.7.3 Zebra
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T.P.D.M.V.2.3 GJVE WAY UNE o 4U «4
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T.P.D.M.V.2.3 (Al/2001) 3.7.3.11 De
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T.P.D.M.V.2.3 (Al/2001) 3.7.4.10 Th
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T.P.D.M.V.2.3 (Al/2001) 3.7.6 Uncon
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T.PD.M.V.2.3 (Al/2001) 3.7.7.7 Tabl
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T.P.D.M.V.2.3 Maitfri Cyefe Trade T
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T.P.D.M.V.2.3 (Al/2001) Table 3.7.7
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T.P.D.M.V.2.3 (Al/2001) 3.7.8 Escal
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T.P.D.M.V.2.3 (Al/2001) 3.8.2 Provi
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T.P.D.M. V.2.3 (Al/2001) 3.8.3.9 No
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T.P.D.M. V.2.3 (Al/2001) 3.9 Railin
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T.P.D.M. V.2.3 (Al/2001) 3.9.2.9 Ra
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T.P.D.M. V.2.3 (Al/2001) 3.9.3 Barr
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T.PD.M. V.2.3 (Al/2001) 3.9.3.8 The
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T.P.D.M. V.2.3 (Al/2001) 3.9.3.26 A
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T.P.D.M. V.2.3 (Al/2001) 3.9.3.36 T
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T.PD.M. V.2.3 (Al/2001) 3.9.4.9 Sin
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T.P.D.M. V.2.3 (Al/2001) 3.10.2 Roa
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T.P.D.M. V.2.3 (Al/2001) TUNNEL iim
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T.P.D.M. V.2.3 (Al/2001) 3.11 Singl
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T.P.D.M. V.2.3 (Al/2001) 3.11.4 Hor
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T.P.D.M. V.2.3 (Al/2001) 3.11.7 Min
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T.P.D.M. V.2.3 (Al/2001) 3.1 L9 Pas
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Revised in December 2001 TRANSPORT
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T.P.D.M.V.2.4 4.5.13 Roundabout Exi
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T.P.D.M.V.2.4 4.6.9.5 Diverging Lan
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T.P.D.M.V.2.4 4.2 Junction Design -
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T.P.D.M.V.2.4 (Al/2001) Mrnor Road
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T.P.D.M.V.2.4 4.2.5 Delay 4.2.5.1 O
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T.P.D.M.V.2.4 4.2.7 Economic Consid
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T.P.D.M.V.2.4 (Al/2001) 4.2.9 Choic
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T.P.D.M.V.2.4 (Al/2001) 4,2.10 Spac
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T.P.D.M.V.2.4 4.3.2 Types of Priori
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4*3*3 Siting of Priority Junctions
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4.3.5 Pedestrian Facilities at Prio
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T.P.DJM.V.2.4 4,3.6*6 The predictiv
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T.P.D.M*V.2.4 4.3.8 Visibility Spla
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A1/88 FOR VEHICLE WAITING TO TURN R
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T.P.O.M V.2.4. FRONT KERB FRONT KER
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T.P.D.M.V.2.4 4.3.9.4 For shadow is
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T.P.D.M.V.2.4 4*3»10 Left TurningL
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T.P.D.M.V.2.4 ^•3*12 Traffic Isla
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T.P.D.M.V.2.4 4.3.14 Corner Badil 4
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T.P.D.M.V.2.4 4,3*16 Recommended La
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T.P.D.M.V.2.4 Diagram No. 4.3.16.8
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T*P.D*M.V.2.4 (v) For left hand spl
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T. P.D M V 24 3.65 CE=E 3.65- 1s25t
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T. P.D.M V.2.4 Keep Leff sign Keep
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T. P D M V 24 Compound curve for di
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T. P. D.M V.2 4 ^ —-• — —"
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T. P.D.M.V 24 1:20 taper RIGHT/LEFT
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T. P.D.M.V.2.4 1*25 taper 1 Diagram
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T P D M V 24 125 taper •UphiU gra
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T.P.D.M*V*2.4 Signal Controlled Jun
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4.5.2 Normal Roundabouts 4.5.2.1 No
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NORMAL ROUNDABOUT T.P.O.M.V. 2.4. T
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T.P.O.M.V. 2.4. CONTIGUOUS DOUBLE R
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T.P.D.M.V.2.4. TWO BRIDGE ROUNDABOU
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TP.D.M.V 2.4. STRAIGHT SECTION PROV
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T.P.D«M.V*2.4 4*5.8 Pedestrian t C
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T.P.D.M.7.2JI 4*5.9*** The predicti
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T.P.D.M.V.2.4 4.5.11 Visibility 4.5
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DESIRABLE/MINIMUM VISIBILITY DISTAN
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T.P.O.M.V. 2 .4. HALF LANE WIDTH DI
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T.RD.M.V.2.4. MINIMUM AREA OVER WHI
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T.P.D.M.V.2.4 in the entry as shown
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.P.O.M.V.2>. ENTRY DEFLECTION ACHIE
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T.P.D.M.V.2.4 4.5*13 Roundabout Exi
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T.P.D.M.V.2.4 4*5.15 Inscribed Circ
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T.P.D.M.V.2.4 4.5.16 Segregated Lef
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Note:- This is not a recommendation
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T.P.D.M.V.2.4 4.5.17 Superelevation
Page 270 and 271: (b) DIVIDING CIRCULATORY CARRIAGEWA
Page 272 and 273: T.P.DJM.V.2.4 4.5.18 Signing and Li
Page 274 and 275: T.P.B.M.7.2.4 4.6 Grade Separated J
Page 276 and 277: T.P.D.M.7.2.4 4.6.2.7 The Partial C
Page 278 and 279: 4*6*3 Siting of Grade Separated Jun
Page 280 and 281: 4,6.5 General Layout Requirements 4
Page 282 and 283: T.P.D.M.V.2.4 ^6* 7 Slip Roads 4.6.
Page 284 and 285: T.P.D.M.V.2.4 4*6.7.12 The width of
Page 286 and 287: T.P.O.M.V.2.4. FIG. A 100 EDGE LINE
Page 288 and 289: T.P.D.M.V.2.4 4.6.8.7 The method of
Page 290 and 291: T.P.D.M.V.2.4 downstream. The layou
Page 292 and 293: DIRECT ENTRY MERGING UN£ (TYPES 2
Page 294: T.P.D.H.V. 2.4 TO SUIT SITE ADDITIO
Page 297 and 298: T*P*D.M.V.2.4 4.6.9*7 The design fl
Page 302 and 303: I.P.O.M.V.2.
Page 304 and 305: T,P*D.M*V.2*4 4.6.10 Weaving Sectio
Page 306 and 307: 44-
Page 308 and 309: T.P.D.M.V.2.4 APPENDIX 1 ! Calculat
Page 310 and 311: T.P.D.M.V.2.4 If right and left tur
Page 312 and 313: T.P.D.M.V.2.4 4» Applying the stre
Page 314 and 315: T.P.D.M.V.2.4 The toui parts of dmw
Page 316 and 317: T.P.D.M.V.2.4 APPENDIX 2 Calculatio
Page 318 and 319: T.P.D.M.V.2.4 D=the inscribed circl
Page 322 and 323: T.P.D.M.V.2.4 4. Using these design
Page 324 and 325: T.P.D.M.V.2.4 APPENDIX 3 Examples o
Page 326 and 327: T*P*D*M.V.2.4 The average gradient
Page 328 and 329: Revised in March 2002 TRANSPORT PLA
Page 330 and 331: T.P.D.M. V.2.5 5.1 References 1. Ch
Page 332 and 333: T.P.D.M. V.2.5 (Al/2002) 5.3 Petrol
Page 334 and 335: T.P.D.M. V.2.5 (Al/2002) 53.2 Layou
Page 336 and 337: T.P.D.M. V.2.5 5.4 Additional Speed
Page 338 and 339: T.P.D.M. V.2.5 (Al/2002) 5.43 Road
Page 340 and 341: T.P.D.M. V.2.5 (Al/2002) (vii) With
Page 342 and 343: 1 R D. M, V. 2.5 Edge of Carriagewa
Page 344 and 345: T.P.D.M. V.2.5 (Al/2002) 5.4.4 Tran
Page 346 and 347: T.P.D.M. V.2.5 (Al/2002) 5.4.5.8 Us
Page 348 and 349: T.P.D.M. V.2.5 5.4.6.11 As with rum
Page 350 and 351: T.P.D.M. V.2.5 (Al/2002) 5.5.2 Gene
Page 352 and 353: T.P.D.M. V.2.5 (Al/2002) 5.6.2 Aspe
Page 354 and 355: T.P.D.M. V.2.5 (Al/2002) 5.6.2.12 W
Page 356 and 357: T.P.D.M. V.2.5 (Al/2002) 5.6.3.3 Tr
Page 358 and 359: Revised in March 2002 TRANSPORT PLA
Page 360 and 361: T.P.DJVLV.2.6 (Al/2002) Diagrams 6.
Page 362 and 363: T.RD.M.V.2.6 (Al/2002) 6.2 Introduc
Page 364 and 365: T.RD.M.V.2.6 (Al/2002) 63 Expresswa
Page 366 and 367: T.RD.M.V.2.6 (Al/2002) 63.2 Horizon
Page 368 and 369: NOTES 1. FOR DETAILS OF ROAD STUDS
Page 370 and 371:
1. FOR DETAILS OF ROAD STUDS AND MA
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T.P.D.M.V.2.6 (A1/2002) CENTRAL RES
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T.P.D.M.V.2.6 (A1/2002) •FACE OF
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10&Q BOUMQA8Y FENCE 1 38UNQARY FENC
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T.RD.M.V.2.6 (Al/2002) v) earth mou
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T.RD.M.V.2.6 (Al/2002) 6.3,4 Draina
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T.RD.M. V.2.6 (Al/2002) 63.6 Juncti
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T.P.D.M.V.2.6 (A172002) DIRECT ENTR
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MIN. LANE WIDTH 3.7m ISLAND WIDTH 2
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T.P.D.M.V.2.6 (A172002) 70 NOSE DIR
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T.P.D.M.V.2.6 (A1/2002) 130 70 NOSE
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T.RD.M.V.2.6 6.4 Permanent Signs an
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T.P.D.M.V.2.6 (Al/2002) i l FOR 2 L
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T.RD.M.V.2.6 (Al/2002) 6.4.1.10 Det
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T.PD.M.V.2.6 (Al/2002) 6.4.2 Direct
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T.P.D.M.V.2.6 (Al/2002) (a) Layout
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T.P.D.M.V.2.6 (Al/2002) 6.43 Chaina
Page 407 and 408:
TJP.D.M.V.2.6 (Al/2002) 6.4.4.7 In
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T.P.D.MV.2.6 (Al/2002) 6.6 Maintena
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T.P.D.M.V.2.6 (A1/2002) BEARS MINOR
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T.P.D.M.V.2.6 (Al/2002) 6.7.2.9 Whe
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T.P.D.M. V.2.6 (Al/2002) 6,8.2 Acti
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