HOW SAFE ARE OUR ROADS? Tracking the safety performance of New Zealand s state highway network

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Christian Hancock
5 years ago
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1 WAIKATO AND BAY OF PLENTY Regional results 0 What is KiwiRAP? KiwiRAP analyses the road safety ratings of New Zealand s (0+km/h) rural state highway network. KiwiRAP is part of an international family of Road Assessment Programmes (RAP) under the umbrella of the International Road Assessment Programme (irap). irap now works in partnership with government and non-government organisations in 0 countries. From its findings, irap recommends design improvements that need to be implemented in order to save lives and reduce the number of serious injuries on the world s roads. The objectives of KiwiRAP are: To reduce deaths and injuries on New Zealand s roads by systematically assessing risk and identifying safety shortcomings that can be addressed with practical road improvement measures To have risk assessment as a key factor in strategic decisions on road improvements, crash protection and standards of road management To provide meaningful information on where the greatest levels of risk are faced, and in turn, to influence driver and rider behaviour How does a road assessment programme work? KiwiRAP consists of three protocols : Risk Mapping - uses historical traffic and crash data to produce colour-coded maps illustrating the relative level of risk on sections of the road network Performance Tracking involves a comparison of crash rates over time to establish whether fewer or more people are being killed or seriously injured; and to determine if countermeasures have been effective Star Rating road inspections look at the engineering features of a road (such as lane and shoulder width or presence of safety barriers). Between - and -Stars are awarded to road links, depending on the level of safety built-in to the road (the higher the star, the better the road). The first KiwiRAP Risk Maps were produced in 00, followed by Star Ratings in 0. This brochure shows results for Risk Mapping and Performance Tracking, comparing crash data for to that from. Performance Tracking Performance tracking is the comparison of crash rates over time to establish whether fewer or more people are being killed or seriously injured on various road sections; and to determine how effective any countermeasures have been. Performance tracking in this report compares data to data and is New Zealand s first opportunity to track the safety performance of the state highway network using KiwiRAP methods. For the purpose of comparing the level of risk of crashes between different parts of the network, KiwiRAP has broken the,km of the assessed state highway network into road sections (known as links ). The same links that were developed and used for the first Risk Maps (released in 00) have been used, where possible, in these results. 0 RISK MAPS For the purposes of displaying the safety risk of the state highway network, KiwiRAP looks at two different measures of risk: Collective Risk and Personal Risk. The focus of both is on crashes where people have been killed or seriously injured. The crash statistics used for the calculations are for the five-year period between. The roads highlighted as being of higher risk than others are likely to have specific reasons why. The road, the vehicle, the speed and the driver/rider each contribute to risk. Collective Risk (or Crash Density) Collective Risk is a measure of the total number of fatal and serious per kilometre over a section of road. Because Collective Risk is measured in terms of the number of crashes per kilometre of state highway, you would generally

expect that those with higher traffic volumes would have a higher Collective Risk. Personal Risk Personal Risk is a measure of the risk to each individual using the state highway being assessed.

2 expect that those with higher traffic volumes would have a higher Collective Risk. Personal Risk Personal Risk is a measure of the risk to each individual using the state highway being assessed. Unlike Collective Risk, Personal Risk takes into account the traffic volumes on each section of state highway. RISK RATING COLLECTIVE RISK PERSONAL RISK COLOUR Average annual fatal Average annual fatal and serious injury and serious injury crashes per km crashes per 0 million vehicle-km 0.0 < -medium high The risk thresholds for the bands have remained the same in order for comparisons to be made between the 00 Risk Maps (covering crashes in the period) and the Risk Maps in this report for the period. Performance tracking FOR WAIKATO AND BAY OF PLENTY REGION Collective Risk There has been a drop in the percentage of state highway network in both the high and mediumhigh collective risk categories in the Waikato and Bay of Plenty region. There has been a subsequent increase in the medium and low collective risk categories as a result. Changes in Collective Risk in the Waikato and Bay of Plenty Region (comparing data with ) Period - - Total Percentage Length (km) Percentage Length (km) % % % % % 0%, % % % % % 0%, Note: percentages may not add to 0% due to rounding

Personal Risk The percentage of kilometres of state highway in the Waikato and Bay of Plenty region in the high personal risk band has increased from % to % over the two time periods while the

3 Personal Risk The percentage of kilometres of state highway in the Waikato and Bay of Plenty region in the high personal risk band has increased from % to % over the two time periods while the percentage of network in the medium-high band has dropped from % to % over the same time period. The percentage of network in the low risk band has increased from % to %. Changes in Personal Risk in the Waikato and Bay of Plenty Region (comparing data with )) Period - - Total Percentage Length (km) Percentage Length (km) % % % % % 0%, % % % % % 0%, Note: percentages may not add to 0% due to rounding The table below details how the risk categories of the links in the Waikato and Bay of Plenty region have changed between the two time periods. changes in collective risk DAta data link SH from Cambridge to Piarere (SH ) SH from Hamilton to Cambridge SH from Huntly to Hamilton SH from Meremere to Rangiriri SH from Piarere to Putaruru SH from Pokeno to Meremere SH from Putaruru to Tokoroa SH from Rangiriri to Huntly SH from Takanini to Pokeno* SH B from Taupiri to Cambridge SH from Taupo to Turangi SH from Tokoroa to Taupo SH from Turangi to Waiouru* changes in PERSONAL risk DAta data

4 changes in collective risk DAta data link SH from Katikati to Tauranga SH from Mangatarata (SH ) to Paeroa SH from Matata to Opotiki SH from Opotiki to Gisborne via Waioeka Gorge* SH from Paeroa to Katikati SH from Pokeno (SH ) to Mangatarata (SH ) SH from Mount Maunganui (SH ) to Paengaroa (SH ) SH from SH to Matata SH from Hamilton to Te Awamutu and SH SH from Te Awamutu to Te Kuiti SH from Te Kuiti to New Plymouth* SH from Eight Mile Junction (Sth of Te Kuiti) to Taumarunui* SH from Rotorua to Wairakei SH from Taupo to Tarawera* SH from Tirau to Rotorua SH from Hamilton to Raglan SH and SH from Matamata to Putaruru SH from Mangatarata (SH ) to Thames SH from Thames to Whitianga via Coromandel SH from Whitianga to Waihi SH A from Kopu to Hikuai SH from Hamilton to Morrinsville SH from Morrinsville to Kopu SH from Mangatarata (SH ) to Tirau SH and SH within Tauranga SH from Kaimai Ranges to Tauranga SH from Piarere to the Kaimai Ranges SH from Rotorua to Atiamuri SH from Rotorua (Te Ngae) to Whakatane SH from Te Kuiti to Atiamuri SH from Kawhia to SH SH from Tokoroa to Kuratau SH and SH from Rotorua to Paengaroa SH from Edgecumbe (SH ) to Kawerau (SH ) SH Tauranga to Ngongotaha SH from SH to Waitomo Caves SH from Rainbow Mountain to Murupara SH and SH from Ngaruawahia to Otorohanga DAta SH from Taumarunui to Turangi* - SH SH SH from National Park to Turangi* changes in PERSONAL risk data *These links cross map boundaries, so will appear in more than one regional list. Boxes highlighted green depict a decrease in risk between the and time periods; red depicts an increase in risk; no colour is no change in risk.

5 0 RISK MAPS FOR WAIKATO AND BAY OF PLENTY REGION Link SH B from Taupiri to Cambridge SH from Cambridge to Piarere (SH ) SH from Hamilton to Cambridge SH from Huntly to Hamilton SH from Meremere to Rangiriri () SH from Piarere to Putaruru SH from Pokeno to Meremere () SH from Putaruru to Tokoroa SH from Rangiriri to Huntly SH from Takanini to Pokeno () SH from Taupo to Turangi SH from Tokoroa to Taupo SH from Turangi to Waiouru () SH from Katikati to Tauranga SH from Mangatarata (SH ) to Paeroa SH from Matata to Opotiki SH from Opotiki to Gisborne via Waioeka Gorge () SH from Paeroa to Katikati SH from Pokeno (SH ) to Mangatarata (SH ) SH from Mount Maunganui (SH) to Paengaroa (SH ) SH from SH to Matata SH from Hamilton to Te Awamutu and SH SH from Te Awamutu to Te Kuiti SH from Te Kuiti to New Plymouth () SH from Mile Junction (South of Te Kuiti) to Taumarunui () Length () Serious Fatal Collective Collective Personal Personal (km) Injury Crashes Risk Risk Band Risk Risk Band Crashes 00 to 00 to 0 0 Annual average fatal and serious per km LM - Annual average fatal and serious per 0 million vehicle-km M (Table continues next page)

6 Link SH from Rotorua to Wairakei SH from Taupo to Tarawera () SH from Tirau to Rotorua SH from Hamilton to Raglan SH and SH from Matamata to Putaruru SH from Mangatarata (SH ) to Thames SH from Thames to Whitianga via Coromandel SH from Whitianga to Waihi SH A from Kopu to Hikuai SH from Hamilton to Morrinsville SH from Morrinsville to Kopu SH from Mangatarata (SH ) to Tirau SH and SH Tauranga Urban () SH from Kaimai Ranges to Tauranga SH from Piarere to the Kaimai Ranges SH from Rotorua to Atiamuri SH from Rotorua (Te Ngae) to Whakatane SH from Te Kuiti to Atiamuri () SH from Kawhia to SH SH from Tokoroa to Kuratau SH and SH from Rotorua to Paengaroa SH from Edgecumbe (SH ) to Kawerau (SH ) (Table continues next page) Length () Serious Fatal Collective Collective Personal Personal (km) Injury Crashes Risk Risk Band Risk Risk Band Crashes 00 to 00 to Annual average fatal and serious per km Annual average fatal and serious per 0 million vehicle-km

7 Link SH from Opotiki to Tokomaru Bay () SH Tauranga to Ngongotaha SH from SH to Waitomo Caves SH from Rainbow Mountain to Murupara SH and SH from Ngaruawahia to Otorohanga SH from Taumarunui to Turangi () SH SH SH from National Park to Turangi () Length () Serious Fatal Collective Collective Personal Personal (km) Injury Crashes Risk Risk Band Risk Risk Band Crashes 00 to 00 to Annual average fatal and serious per km Annual average fatal and serious per 0 million vehicle-km Note: (Table above) The link length includes urban sections. However, the urban lengths and urban crashes have been excluded from the crash risk analysis. These links cross map boundaries, so will appear in more than one regional list. This link has been altered within the analysis period. The published length of this link has changed significantly from the 00 Risk Map report due to rerouting and renumbering of state highways within Tauranga. The published length of these links have changed from the 00 Risk Map report due to matching beginning and end points with the extension of the Waikato Expressway and also due to the kilometres taking into account the dual carriageway nature of the route. Dual carriageway routes have each carriageway rated separately. Symbol : no data.

8 WAIKATO and BAY OF PLENTY REGION Little Barrier Wellsford Great Barrier Cape Rodney Omaha Bay C lv Warkworth ill e Ch ann el Cape Colville hur an Orewa N Ma e SOUTH PACIFIC OCEAN o Takatu Point gi H ar bour Rangitoto ro Co Manukau Firth of Thames Thames Pukekohe Tairua Tairua Harbour a uh ar sul nu ka nin Ma h Head l Pe 0 A Whangamata Mayor Waikato River Waihi Paeroa Waikare Whangape Te Aroha Huntly Ngaruawahia B Matakana Mt Maunganui Morrinsville HAMILTON ik at o Wa Otorohanga Whakatane Opotiki Kawerau Tarawera Whakamaru ROTORUA Te Kuiti Rotoiti Tokoroa Riv er Waitomo Caves Rotorua Putaruru Te Puke Te Awamutu Kawhia Cambridge hi a H ar b our Matamata B White Bay of Plenty TAURANGA Raglan K aw Mercury Bay Whitianga nde ma AUCKLAND 0km Scale :,0,000 Waiheke 0 0 Hauraki Gulf Murupara TAUPO Taupo Taumarunui r Kuratau Junction ga an Wh COLLECTIVE RISK Whangamomona - - m Waikaremoana National Park Collective Risk: Annual average fatal and serious injury crashes per km Turangi Wa Rotoaira Ohakune Waikaremoana nu i Ri ve Moawhango Waiouru Hawke Bay Eskdale COLLECTIVE risk Map

9 WAIKATO and BAY OF PLENTY REGION Little Barrier Wellsford Great Barrier Cape Rodney Omaha Bay C lv Warkworth ill e Ch ann el Cape Colville hur an Orewa N Ma e SOUTH PACIFIC OCEAN o Takatu Point gi H ar bour Rangitoto ro Co Manukau Firth of Thames Thames Pukekohe Tairua Tairua Harbour a uh ar sul nu ka nin Ma h Head l Pe 0 A Whangamata Mayor Waikato River Waihi Paeroa Waikare Whangape Te Aroha Huntly Ngaruawahia B Matakana Mt Maunganui Morrinsville HAMILTON ik at o Wa Otorohanga Whakatane Opotiki ROTORUA Kawerau Tarawera Whakamaru Rotoiti Te Kuiti Rotorua Tokoroa Riv er Waitomo Caves Putaruru Te Puke Te Awamutu hi a H ar b our Cambridge Kawhia Matamata B White Bay of Plenty TAURANGA Raglan K aw Mercury Bay Whitianga nde ma AUCKLAND 0km Scale :,0,000 Waiheke 0 0 Hauraki Gulf Murupara TAUPO Taupo Taumarunui r Kuratau Junction ga an Wh PERSONAL RISK Whangamomona - - m Waikaremoana National Park Personal Risk: Annual average fatal and serious injury crashes per 0 million vehicle-km Turangi Wa Rotoaira Ohakune Waikaremoana nu i Ri ve Moawhango Waiouru Hawke Bay Eskdale PERSONAL risk Map

Risk Maps. Risk Maps how the sections were identified

Risk Maps. Risk Maps how the sections were identified 2007-2011 Risk Maps Risk Maps how the sections were identified For the purpose of comparing the level of risk of crashes between different parts of the network, the state highway network was broken up