Infrastructure Development Code

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Table 1: Design Requirements for Various Road Classifications

Type Drawing Number Drawing Reference Speed Value (kph) Road Zone Width (m) Maximum Gradient Roadside Environment

Indicative Volume Range

(vpd)

Tree Location Safety Audit Requirement Comments
Highways Expressways Motorways Primary Arterial Roads n/a n/a Designed to New Zealand Transport Agency Manuals  In accordance with NZTA requirements  
Secondary Arterial Road Zone




 
T101 SA1 - Four Lanes/ Solid Median/ Positive Crossfall >70 34.0 5% Four lane and two lane arterial road types. Intersections limited and often signal controlled.
Typically have service roads and development frontage to support a mix of uses.
Direct vehicle access from adjoining property should be limited.

 
>15,000 vpd Berm Checklist review at feasibility stage.
Full Road Safety Audits at preliminary design, detail design and post construction stages.

Symmetrical layout Parking not required

Cycle lane required

T102 SA2 - Two Lanes/ Solid Median/ Positive Crossfall >70 28.0 5% 7,000 - 15,000 vpd Berm

Symmetrical Layout Parking not required

Cycle Lane required

T103 SA3 - Four Lanes/ Solid Median/ Positive Crossfall <70 37.0 5% Four lane and two lane arterial road types.  
Intersections limited and often signal controlled.  
Typically have service roads and development frontage to support a mix of uses. 
Direct vehicle access from adjoining property should be limited.
On-street parking is desirable.  
Solid medians are preferred for road sections with high demand for cross pedestrian movements.  
>15,000 vpd Parking

Symmetrical Layout Parking required

Cycle Lane required

T104 SA4 - Two Lanes/ Solid Median/ Negative Crossfall <70 33.0 5% 7,000 - 15,000 vpd Berm

Symmetrical Layout Parking required 

Cycle Lane required Low Impact Design option

T105 SA5 - Two Lanes/ Solid Median/ 
Positive Crossfall
<70 32.0 5% 7,000 - 15,000 vpd Berm Symmetrical Layout Parking required
T106 SA6 - Two Lanes/ Painted Median/ Positive Crossfall <70 30.0 5% 7,000 - 15,000 vpd Berm

Symmetrical Layout Parking required

Cycle Lane required

Collector Road Zone T107 CR1 - Four Lanes Median/ Positive Crossfall 50 31.0 8.33% Typically have service roads and development frontage to support a mix of uses.
Direct vehicle access from adjoining property should be limited.
On-street parking could be considered inside activity centres and this would increase the Road Zone by 4.5m.
>15,000 vpd Berm Checklist review at preliminary design stage.
Full Road Safety Audits at detail design and post construction stages.

Symmetrical Layout Parking may be required.

Cycle Lane required.

T108 CR2 - Two Lanes/ Solid Median/ Negative Crossfall 50 33.0 8.33%   7,000 - 15,000 vpd Berm

Symmetrical Layout Parking required

Cycle Lane required Low impact design option

T109 CR3 - Two Lanes/ Solid Median/ Positive Crossfall 50 29.0 8.33% 7,000 - 15,000 vpd Berm

Symmetrical Layout Parking required

Cycle Lane required

T110 CR4 - Two Lanes/ Painted Median/ Positive Crossfall 50 25.5 8.33% 5,000 - 12,000 vpd Parking Symmetrical Layout Parking required Painted median may be reduced to 2.0m and Road Reserve reduced to 25.0m if there is a low proportion of heavy vehicles
T111 CR5 - Two Lanes/ No Median/ Positive Crossfall 50 23.0 8.33% 3,000 - 5,500 vpd Parking

Symmetrical Layout Parking required

Cycle Lane required

Industrial Road Zone T112 CI1 - Two Lanes/ No Median/ Positive Crossfall 50 23.0 5% For use in industrial zones. High percentage of trucks expected. <5,000 vpd Berm Checklist review at prelimminary design stage. Full Road Safety Audits at detail design and post construction standards.

Symmetrical Layout Parking required

Cycle Lane not required

  T113 CI2 - Service Lane 15 6.0 12.5%   <250 vpd Berm

Checklist review detail design stage.

Full Road Safety Audit at post construction stage.

Refer to drawing for details

Parking not required

Cycle Lane not required

Local Road

Road Zone

T114 LR! - Two Lanes/ Parking/ Positive Crossfall 50 20.0 12.5% Wider undivided roads for use in situations that require increased parking and/or traffic demand.   <3,500 vpd Parking Checklist review at preliminary design stage.
Full Road Safety Audits at detail design and post construction stages.

Symmetrical Layout Parking required

Cycle Lane not required

T115 LR2 - two LAnes/ Parking/ Positive Crossfall 50 20.0      

Symmetrical Layout, Parking not required

Cycle Lane not required

T116 LR3 - Two Lanes/ No Median/ Positive Crossfall 50 16.0 12.5% <1,000 vpd Parking

Symmetrical Layout Parking not required

Cycle Lane not required

T117 LR4 - One Lane/ Parking <50 17.0 12.5% Local access for roads that are short, have a low volume and a low parking demand. <250 vpd Berm Checklist reviews at detail design and post construction standards.

Symmetrical Layout, single vehicle lane,

Parking required

Cycle Lane not required

T118 LR5 - One Lane/ Passing Lane <50 12.0 12.5%   <250 vpd Parking   Layout not symmetrical, 
single vehicle lane, passing lane, utilities on one side only Parking may be required
Cycle Lane not required
  T119 SL1 <50 8.0 12.5% Any lane laid out or constructed for the purpose of providing the public with a side or rear access for vehicular traffic to any land.  This can also apply to residential areas. <150 vpd Berm Checklist reviews at detail design and post construction stages Symmetrical layout, single 
vehicle lane, utilities and 
planting on opposite sides
Parking may be required
Cycle Lane not required
T119 SL2 <50 12.0 12.5% <250 vpd Berm Symmetrical layout, single 
vehicle lane, utilities and 
planting on opposite sides
Parking may be required
Cycle Lane not required

Rural 
Residential

 

 

T120 RR1 - Type 1 - 20 12.5% Typical low volume road with the only purpose to provide access road to rural residential subdivisions.   <550 vpd Berm Checklist reviews at detail design and post construction stages

Specific Design for approval 

Parking not required

T121 RR2 - Type 2 - 20 12.5% <550 vpd Berm Specific Design for approval

Tauriko

Business

Estate

T133 Secondary Arterial Road Zone Tauriko only, use in conjunction with all related City Plan requirements
T134 Collector Road Zone Tauriko only, use in conjunction with all related City Plan requirements
T135 Green Connector Tauriko only, use in conjunction with all related City Plan requirements

Checklist review at prelimminary design stage.

Full Road Safety Audits at detail design and post construction stages.

Wairakei T140 Secondary Arterial Road Zone Wairakei only, use in conjunction with all related City Plan requirements Te Okuroa Drive Only
Utility Services T122 Underground Service Locations Minimum widths & seperations to be adhered to for all cases where possible Checklist reviews at detail design and post construction stages Deviation from minimum alignments requires approval of the Corridor Manager
      Design Speed (kph) Access Width (m)           Comments
  T123 A. Recreational Use 20 7.0         Checklist review at preliminary design stage.
Full Road Safety Audits at detail design and post construction stages.
Planting on one side only
and located so shadows fall
within the accessway
T123 B. Regular and Concurrent Use 25 7.0         Planting on one side only
and located so shadows fall
within the accessway
T123 C. Recreational Use  30 7.0         Planting on one side only
and located so shadows fall
within the accessway
        Access Width (m) Maximum Gradient         Comments
Private Ways T124 Serving 1-4 Independent Dwelling Units - 3.0 20%       Checklist reviews at detail design and post construction standards  
T125 Serving 5-12 Independent Dwelling Units (max) - 6.0 12.5%        
T126 Rural - varies         Specific design for approval

Definitions in this section

City plan

Corridor manager

Design

Low impact design

New zealand transport agency

NZTA

Road

Street