Resources & manuals

• Reference: 4
• Author: DSIR Physical Sciences

A rapid method has been developed to evaluate the night lighting conditions at a road site in terms of the performance values of the Road Lighting Code. The method involves the use of luminance, illuminance, length and angle measurements. The on-site measurements can be readily carried out in under half-an-hour with the results recorded on a check sheet for analysis later by a computer...

• Reference: 7
• Author: Christchurch Cycle Safety Committee

This study explores the patterns of cycle use and collisions among adults and school students in Christchurch, New Zealand. Reporting rates for all cycle collisions are obtained, including those which do not involve motor vehicles. From the results of the survey recommendations are made to improve the safety of cyclists in the city.

Questionnaires were distributed to adult cyclists,...

• Reference: 10
• Author: Travers Morgan (NZ) Ltd

The Accident Countermeasures Research project provides information about the accident reductions that could be expected under New Zealand conditions if particular accident countermeasures are implemented. To achieve this objective, international literature on the effects of accident countermeasures, especially that which examined the impacts of countermeasures on specific accident types and on...

• Reference: 30
• Author: Works Consultancy Services Limited

The transport industry in New Zealand has requested that the maximum speed of transporters and mobile power cranes be increased from the present 50 km/h to the legal speed limit of 100 km/h.

In response to this request, a literature search of investigations of possible relationships between speed of overweight vehicles and their impact at higher speeds on pavements and bridges was made...

• Reference: 39
• Author: Gabites Porter Consultants

A comparison of the road accident rates between five cities in New Zealand was undertaken between 1989 and 1991. Accident data from these cities were coded onto validated road networks prepared for transportation studies. Accident rates have been calculated using accident data and modelled traffic volumes, and significant differences in accident rates are apparent.

To determine the...

• Reference: 47
• Author: Allan Kennaird

Recommendations are presented for adjustments to the procedures used by Transit New Zealand for determining accident savings from road improvements for project evaluation. The adjustments allow for general trends in New Zealand road accidents arising from those road safety programmes other than road improvements.

• Reference: 48
• Author: Beca Carter Hollings & Ferner Ltd

Interest in the application of macroscopic models for the description of improvements in traffic safety has increased since the early 1980s.

Two models that have been developed to establish relationships between traffic volumes and traffic safety (based on fatality rates) are applied to New Zealand and Australian data to compare these countries' developments in traffic safety to...

• Reference: 65
• Author: Works Central Laboratories

Roadmarkings are provided on roads to give guidance of the route ahead. To be effective at night-time, roadmarkings need to have adequate retroreflective properties. A recommended minimum value of retroreflectivity was established that is appropriate for roadmarkings used on New Zealand roads. This minimum reflective value is 90 mcd.m¯².lux¯¹.

The study method was a panel type, whereby...

• Reference: 69
• Author: Traffic and Road Safety Research Group, University of Waikato

One hundred and thirty participants (70 males; 60 females), aged between 18 and 40, took part in this research to test the relative conspicuity of eight different test-garments. A simulated driving situation was produced where the participants were required to fixate on a central task (simulating driving) while searching coloured slide photographs to detect a road worker wearing a...

• Reference: 79
• Author: Opus Central Laboratories

This report presents a road geometry survey of the New Zealand highway system and the subsequent use of the data to model the relationship between highway features and relative crash risk. The Australian Road Research Board's RGDAS (Road Geometry Data Acquisition System) survey vehicle was used in 1992, to survey the geometry of all of New Zealand's highways (excluding unsealed...

• Reference: 85
• Author: Opus Central Laboratories, Opus International Consultants Ltd

The Transit New Zealand Project Evaluation Manual (1996) outlines the procedures to be adopted when evaluating roading projects in New Zealand. In 1996, as part of the periodic updating of project evaluation methods, two aspects of the accident analysis procedures were reviewed. The issues addressed were the increased severity of accidents that occur at higher speeds; and the prediction of...

• Reference: 89
• Author: Opus Central Laboratories

National accident records and road description databases are used to calculate accident rates (expressed as the number of reported injury accidents per 100 million kilometres) for some selected types of road. Rates were calculated for three classes of passing lane on rural sections of New Zealand state highways, and for rural unsealed sections of state highways and local roads. Where there was...

• Reference: 92
• Author: Opus Central Laboratories

Ice, frost, snow, fog and high wind are relatively common hazards on many New Zealand roads, and road weather information systems (RWIS) could be expected to make a significant contribution to road safety.

A review of the international scientific and trade literature undertaken in 1994 identifies the nature of RWIS, their capabilities, the benefits arising from their use, and the...

• Reference: 103
• Author: Opus Central Laboratories, Opus International Consultants Ltd

A review of the international literature was undertaken in 1994 to identify the types of rumble strip available, situations where and how they are used, their effectiveness in reducing accidents and modifying driver behaviour, their adverse effeccts such as noise, and their expected service life. The available information was then interpreted to identify the suitability of rumble strips for...

• Reference: 107
• Author: Beca Carter Hollings & Ferner Ltd

The report details the safety benefits achieved by the installation of median barriers on the New Zealand motorway system. Before & After analysis, using log-odds, regression and multiplicative models, was applied to determine the safety benefits.

Each of these models produced evidence of similar reductions in fatal accidents of around 75%, The estimated reduction in non-fatal...

• Reference: 119
• Author: Opus Central Laboratories

This report presents the results of a research programme involving both laboratory and on-road investigations that has been carried out in 1996-97 with the aims of:

- improved understanding of the Polished Stone Value (PSV) test and its application to alluvial aggregates;
- identifying critical aggregate characteristics from the perspective of skid resistance performance;

• Reference: 139
• Author: Opus Central Laboratories, R B Davies

Reports resulting from the NLTP sector research, funded through NZTA's Research Programme, grouped by key research area.

• Reference: 141
• Author: Opus Central Laboratories

Reports resulting from the NLTP sector research, funded through NZTA's Research Programme, grouped by key research area.

• Reference: 146
• Author: Opus Central Laboratories, Opus International Consultants Ltd

Reports resulting from the NLTP sector research, funded through NZTA's Research Programme, grouped by key research area.

• Reference: 180
• Author: Francis and Cambridge Ltd

Reports resulting from the NLTP sector research, funded through NZTA's Research Programme, grouped by key research area.