Infrastructure Investment Plan Stream 4
Peak commuter demand
While current forecasts of state population growth are modest, significant growth is expected in the greater Hobart and Launceston areas in particular in the next 20 years. This is consistent with State Road Network customer demand trends, which show growth in demand has been highest on arterial commuter routes.
Projected customer demand for the State Road Network between 2015 and 2030 shown in terms of change and growth in annual average daily vehicles per road category. Annual demand growth rates are generally low (less than one and a half per cent per year); however, the absolute growth in demand on urban arterial commuter routes (urban category 1) of 4000 vehicles per day by 2030 is significant for future peak commuter demand capacity.
While the capacity of urban and commuter arterial state roads is expected to be sufficient for most of the day, peak demand capacity in the mornings and evenings will come under increasing pressure.
In the short-term these commuter arterial corridors are vulnerable to temporary capacity constraints usually as a result of crashes or other traffic interruptions.
Addressing the limited duration peak commuter demand by road and/or bridge upgrades alone will result in underutilised infrastructure. A combination of measures involving upgraded infrastructure, intelligent transport systems for better network management and customer demand solutions including public transport options will therefore need to be considered.
By 2025, State Road Network upgrades will have increased the reliability of travel times on the Brooker Highway, the southern approaches to Launceston, the West Tamar Highway, the East Tamar Highway and the Bridgewater Bridge.
The Tasman Highway approaching Hobart is the most heavily utilised state road, and a number of projects to increase capacity on this route are planned. However these projects will be subject to a recently commenced commuter origin/destination analysis prior to these projects proceeding.
This commuter origin/destination analysis will be a pilot to assist in the definition of capacity-related levels of service, such as an appropriate measure of travel time reliability, and will be progressively applied to Hobart and Launceston commuter arterial routes to guide the development of further upgrades to be constructed between 2025 and 2035.
For information about the Infrastructure Investment Plan Streams, please refer to the following:
- Sustainable maintenance - Infrastructure Investment Plan Stream 1
- Network safety upgrades - Infrastructure Investment Plan Stream 2
- Freight efficiency - Infrastructure Investment Plan Stream 3
- Active transport - Infrastructure Investment Plan Stream 5
- Visitor infrastructure investment - Infrastructure Investment Plan Stream 6