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T.P.D.M. V.2.3 (Al/2001) 3.9.3 Barrier Fences 3.9.3.1 Safety barrier fences and vehicular parapets are intended to prevent vehicles leaving the carriageway and keep any damages and injuries to the vehicles and their occupants to a minimum. The approved types for use in the Territory are untensioned corrugated beam barrier fences, concrete profile barrier fences and vehicular parapets. Apart from vehicular parapets which are shown in Structures Design Manual for Highways and Railways, the approved barrier fences are shown in Diagram 3.9.3.1 and for further details, refer to Highways Department Standard Drawings. 3.9.3.2 Barrier fences will generally only be used on Trunk Roads, Primary Distributors and Rural Roads in circumstances when it is considered that more danger will be occasioned to the vehicle and its occupants in leaving the carriageway than if it is constrained by barrier fences. To accomplish this goal, the barrier fences need to be long enough to shield the hazard, be strong enough to contain the vehicle, and be designed to allow for smooth redirection of vehicle with tolerable deceleration. Where both barrier fences and railings are provided alongside with each other, the clearance between them should not exceed 250 mm to prevent children passing through the gap. 3.9.3.3 It is important that the required horizontal clearances as set down in Table 3.5.2.1 are achieved. In cases where a hard shoulder or marginal strip in accordance with sections 3.4.7, 3.4.9 and 3.4.12 is provided this will generally be automatically achieved, but elsewhere the barrier fences may have to be set back. Where concrete profile barriers replace existing fences, or central reservation railings, the minimum clearance between the foot of the barriers and the edge of carriageway may be reduced to 300mrn. Where this reduced clearance is adopted, care should be taken that the clearance to other street furniture such as lighting columns, gantry legs, traffic signs etc. does conform to Table 3.5.2.1. 3.9.3.4 It should be noted that concrete profile barrier fences should never be installed without an accompanying marginal strip constructed to the same standard as the carriageway and incorporating a continuous edge line marking in accordance with Volume 3. Normally the marginal strip will be formed from the available verge or central reserve width, but where this cannot be achieved the carriageway itself should be used and the lane widths reduced accordingly. The edge line marking is important in clearly defining the edge of carriageway particularly at night as concrete profile barriers are not always clearly discernible. The marginal strip provides the necessary minimum clearance from the carriageway and gives the motorists a further chance of avoiding the barrier should he momentarily lose control. 3.9.3.5 Terminal sections including those at emergency crossings must be ramped down or provide crash cushions as appropriate to avoid more serious injury occurring to occupants of impacting vehicles. Details of the ramp down are given in the Highways Department Standard Drawings. Untensioned Corrugated Beam 3.9.3.6 There are two types of untensioned corrugated beam safety fences, i.e. with compacted earth footings and with concrete footings. 3.9.3.7 The safety fences with compacted earth footings are less rigid than those with concrete footings. They need considerable deflection space and are generally suitable only for wide central reservations.
T.P.D.M. V.2.3 (Al/2001) CROSS SECTION CONCRETE PROFILE BARRIER FENCE 308 508 350 -I- I« LtTf > X 100 W-BEAU STANDARD THRIBEAM MODIFIED THRIEBEAM UNTENSIDNED BEAM BARRIER TYPICAL BARRIER FENCES NOTE: ALL DIMENSIONS ARE IN MILLIMETRES. DIAGRAM 3.9.3.1
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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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Page 100 and 101: T.RD.M.V. rwwi¥f«%i ** SE6 SEOTtQ
Page 102 and 103: T.RD.M.V, 2,3 (A1/2001) oaa, VIR6E
Page 104 and 105: T.P.D.M.V.2.3 3.5 Highway Clearance
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Page 108 and 109: T.PD.M.V.2.3 (Al/2001) 3.6.2 Locati
Page 110 and 111: T.RD.M.V.2.3 LOT BOUNDARY PRIVATE E
Page 113 and 114: T.P.D.M.V.2.3 t N X X X «. I B VIS
Page 115 and 116: T.P.D.M.V.2.3 (Al/2001) (c) (d) Nee
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Page 120 and 121: T.PD.M.V.2.3 (Al/2001) 3.7.3 Zebra
Page 122 and 123: T.P.D.M.V.2.3 GJVE WAY UNE o 4U «4
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Page 158 and 159: T.P.D.M. V.2.3 (Al/2001) 3.10.2 Roa
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Page 170 and 171: Revised in December 2001 TRANSPORT
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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
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(b) DIVIDING CIRCULATORY CARRIAGEWA
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T.P.DJM.V.2.4 4.5.18 Signing and Li
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T.P.B.M.7.2.4 4.6 Grade Separated J
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T.P.D.M.7.2.4 4.6.2.7 The Partial C
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4*6*3 Siting of Grade Separated Jun
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4,6.5 General Layout Requirements 4
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T.P.D.M.V.2.4 ^6* 7 Slip Roads 4.6.
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T.P.D.M.V.2.4 4*6.7.12 The width of
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T.P.O.M.V.2.4. FIG. A 100 EDGE LINE
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T.P.D.M.V.2.4 4.6.8.7 The method of
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T.P.D.M.V.2.4 downstream. The layou
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DIRECT ENTRY MERGING UN£ (TYPES 2
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T.P.D.H.V. 2.4 TO SUIT SITE ADDITIO
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T*P*D.M.V.2.4 4.6.9*7 The design fl
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I.P.O.M.V.2.
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T,P*D.M*V.2*4 4.6.10 Weaving Sectio
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44-
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T.P.D.M.V.2.4 APPENDIX 1 ! Calculat
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T.P.D.M.V.2.4 If right and left tur
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T.P.D.M.V.2.4 4» Applying the stre
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T.P.D.M.V.2.4 The toui parts of dmw
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T.P.D.M.V.2.4 APPENDIX 2 Calculatio
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T.P.D.M.V.2.4 D=the inscribed circl
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T.P.D.M.V.2.H (v) The vehicle proce
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T.P.D.M.V.2.4 4. Using these design
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T.P.D.M.V.2.4 APPENDIX 3 Examples o
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T*P*D*M.V.2.4 The average gradient
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Revised in March 2002 TRANSPORT PLA
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T.P.D.M. V.2.5 5.1 References 1. Ch
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T.P.D.M. V.2.5 (Al/2002) 5.3 Petrol
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T.P.D.M. V.2.5 (Al/2002) 53.2 Layou
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T.P.D.M. V.2.5 5.4 Additional Speed
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T.P.D.M. V.2.5 (Al/2002) 5.43 Road
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T.P.D.M. V.2.5 (Al/2002) (vii) With
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1 R D. M, V. 2.5 Edge of Carriagewa
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T.P.D.M. V.2.5 (Al/2002) 5.4.4 Tran
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T.P.D.M. V.2.5 (Al/2002) 5.4.5.8 Us
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T.P.D.M. V.2.5 5.4.6.11 As with rum
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T.P.D.M. V.2.5 (Al/2002) 5.5.2 Gene
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T.P.D.M. V.2.5 (Al/2002) 5.6.2 Aspe
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T.P.D.M. V.2.5 (Al/2002) 5.6.2.12 W
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T.P.D.M. V.2.5 (Al/2002) 5.6.3.3 Tr
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Revised in March 2002 TRANSPORT PLA
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T.P.DJVLV.2.6 (Al/2002) Diagrams 6.
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T.RD.M.V.2.6 (Al/2002) 6.2 Introduc
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T.RD.M.V.2.6 (Al/2002) 63 Expresswa
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T.RD.M.V.2.6 (Al/2002) 63.2 Horizon
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NOTES 1. FOR DETAILS OF ROAD STUDS
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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
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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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