PPT Slide
- Maintenance cost: zero, except for landscaping
- Construction cost:
- New "cheaper than signals"
- geometry cost about the same
- save $120,000+ for signal installation
- Retrofit "cost is variable"
- Lifetime costing 20 years - benefit/cost ratio of roundabouts is higher due to:
- less crashes
- no operating/maintenance costs
- deduced delay, fuel usage and emission