Kerbside lane closure: New South Head Road, eastbound

WOOLLAHRA · 200 m work area · generated by the TAS worksite engine from live NSW data
WORKING DRAFT · NOT FOR CONSTRUCTION
Posted speed60 km/hTfNSW speed zone
Temporary speed zone40 km/hTS 05492 Table 19 (worker clearance)
Dimension D60 m§14.3
Merge taper60 mTable 74
Safety buffer30 m§14.6.2.4
Lanes in direction2T2-6-1 lane status
On traced paint100%lane edges from 6 cm aerial
Signs · cones12 · 69sited on the verge

Layout (traffic left to right)

Work area 200 m, kerbside lane closedSafety buffer 30 m (no workers, plant or storage; §14.6.2.4)Merge taper 60 m (Table 74 at 60 km/h)Within 1.5 m of the live lane: Table 19 speed zone applies while workers are here12345678910111220 mN
work areawithin 1.5 m of live lanetaper / buffer (no-go)conelane lines traced from imagerysign (number = schedule)

Detail: taper, buffer and start of work

Work area 200 m, kerbside lane closedSafety buffer 30 m (no workers, plant or storage; §14.6.2.4)Merge taper 60 m (Table 74 at 60 km/h)Within 1.5 m of the live lane: Table 19 speed zone applies while workers are here12345678910111220 mN

Sign schedule (install in order, remove in reverse)

Distance is measured along the road from the start of the taper (approach signs) or the end of the work area (end signs).

NoFaceCodeSignDistance (m)SideTS 05492 basisSiting
1T1-1Roadwork Ahead180.0left§14.6.2.2 / Table 51: first advance sign, successive Das designed
2T1-5Workers (Symbolic)120.0left§11.7.2 / Table 19: Workers (Symbolic)as designed
3T2-16End Roadwork60.0right (opposing)§14.6.2.7 / Figure 126as designed
4R4-212n 40Speed Limit Road Work 40 km/h60.0left§11.7.8: zone starts 50-100 m before the work area (taper start)as designed
5T2-6-1Left Lane Closed (Symbolic - 1 lane in direction of travel)60.0left§14.7.3.2.3: final lane status sign not closer than D from the taperas designed
6R4-212n 40Speed Limit Road Work 40 km/h30.0left§11.7.10.3: second sign 0.5 D after the start where the right side is unsafeas designed
7T5-5-RHazard Warning Marker (right)§14.7.3.2.2: minimum two hazard markers per closed laneas designed
8FASFlashing arrow sign (arrow board)§14.7.3.2: flashing arrow sign recommended on multi-lane roads <=80 km/h (§14.7.3.2.3)as designed
9T5-5-RHazard Warning Marker (right)§14.7.3.2.2as designed
10R4-1 60Speed Limit (symbolic) 60 km/h50.0left§11.7.9: speed reinstated <=50 m past the work area (<=60 km/h) or D (>60)as designed
11T1-1Roadwork Ahead60.0right (opposing)§14.6.2.2 / Figure 126: opposing traffic passes the work; confirm need (§14.6.2.2 exclusions)as designed
12T2-16End Roadwork60.0left§14.6.2.7: D from the last affected point, not before the end of the temporary speed limitas designed

Findings

CheckResultDetail
BUS_STOP_30Mattention2 bus stop(s) within 30 m (nearest 1.5 m)
INTERSECTION_IN_CLOSUREattention1 side street(s) cross the closure (William Street): safety buffer for turning traffic and side-road signs needed (§14.6.2.4)
SIGNALS_100Mattention7 OSM signal node(s) within 100 m (nearest 3.9 m): confirm on site
SPEED_ZONE_AUTHORISATIONattentionspeed zone authorisation needed for the 40 km/h zone (§11.7.7)
STATE_ROAD_100MattentionState road within 100 m (nearest 0.0 m): Road Occupancy Licence likely
TEMP_SPEED_ZONEattention40 km/h zone (Table 19: workers within 1.5 m of the live lane); R4-212n at the zone start, R4-1 60 after the work area
SIGHT_DISTANCEnot checkableneeds 90 m (1.5 D urban); no elevation model loaded
CONE_EDGE_CLEARANCEokcone line 0.5 m inside the lane line (Table 49)
CONE_SPACING_T50oktaper cones at most 9 m, lane-line cones at most 4 m (device zone 40 km/h)
END_ROADWORKokT2-16 60 m past the work area
HAZARD_MARKERSok2 x T5-5 on the closed lane at the taper; flashing arrow sign placed (recommended on multi-lane roads <=80 km/h (§14.7.3.2.3))
LANE_EDGES_ON_PAINTok100% of the closure set out on lane edges traced from imagery
LANE_STATUS_SIGNokT2-6-1 at 60 m before the taper (D = 60 m)
MIN_LIVE_LANE_WIDTHokremaining lane 3.30 m (median of 4 traced stations, min 3.05 m)
SAFETY_BUFFER_30Moksafety buffer 30 m
SCHOOL_200Mokno school within 200 m
SCHOOL_ZONE_50Mokno school zone within 50 m
SIGN_FACESok9 signs, every code named in TS 05492 and its face checked against the name
SIGN_SITINGokall signs sited on the verge at their designed positions
SIGN_SPACING_Dokadvance signs at successive D = 60 m from the taper, all within Table 88 tolerance
SPEED_AHEAD_SIGNokG9-79 not required (60 to 40 km/h)
TAPER_LENGTH_T74okmerge taper 60 m (Table 74 at 60 km/h)