Road Safety Dashboard to manage multiple datasets as a single source
of truth

How the road safety dashboard is set up

Abley’s lead consultant on the project, and proud Northlander, Rebecca explains,

We’ve created a system where the NTA team can look at risk mapping, speed management, curve risk, and slow street infrastructure all in one place, nicely laid out with handy filters and graphs. We’ve recently added a second dashboard curating data for projects Northland are doing in the active modes space and worked with another consultant to bring all that data into one place.”

The risk mapping function allows the NTA team to look at the crash risk on corridors across Northland. It includes data on crash history and breaks crashes down by severity so NTA can use filters to understand where different types of crashes occur.

The speed management layer draws on the national speed management work Abley did with Waka Kotahi, collating that data for the region. This is used to prioritise speed management interventions and gives the NTA team more ability to cross reference speed management projects, understand the changes proposed, the criteria assessed, and final outcomes.  

Slow Streets data identifies locations where NTA could consider slow street infrastructure like chicanes and judder bars to slow cars down. It helps the team with forward work programming and allows them to prioritise streets for infrastructure interventions, ranking them across urban areas, community boards, and the district.

Curve risk has been mapped for Whangarei. Curves are risk rated high, low, or medium using a simple traffic light code. When NTA are planning works they can understand where a curve sits in terms of risk and decide whether to factor additional interventions into their work programme. Abley recently developed a new curve risk mapping process using LIDAR and central line data which allows regions with no high-speed data to map their curve risk.

Finally, about tabs explain why each road is scored the way it is, where the data comes from, and what work has been carried out. This is particularly helpful for new NTA team members looking for background on a particular corridor.