The road of course does have to go all the way from the house to the train station or into town and all the bridges have to be up.Roger Adair wrote:vts many thanks for your sharp end practical perspective.vtsnowedin wrote:
Any house without a road to it's dooryard is worthless.
The last bit of boreen leading up to a house is probably the least problem and I would be more concerned with the energy and financial cost of upkeeping the hundreds of miles of main artery dual carriageway and motorway. The less traffic volume and vehicle/fuel tax income the less road upkeep can be afforded and once a road starts to really "go" I have seen how it does go.
Apart from the now famous ghost hosing estates of Ireland we also have been left with an enomously expanded motorway system with a peak carrying capacity in parts of at least 10 or 20 times current demand.......
Traffic volumes are still holding up here as the gas tax is only 42.9 cents per US gallon and with the tax a gallon costs $3.15 today. I have never built a new section of road that was not immediately full to it's safe capacity during peak hours. All that will change as we pass peak oil and people will have to stop commuting long distances and the train stations will have to be reopened.
Your underused roads will last longer and when repairs are needed a much thinner overlay will do the job. I have supervised the paving of miles of New Hampshire roads using a mix of just sand and asphalt cement laid to a nominal 3/8 of an inch deep. This uses just 300 short tons to a mile(22 ft. wide) and can cost as little as $40,000 per mile including the re-striping and traffic control. It lasts from five to seven years here with a considerable volume of heavily loaded log trucks and on roads that were never built to a high standard to begin with. We call the worst roads here evolved cow paths and some of them appear to be on an evolutionary dead end. During frost-heave season these so called roads are a thing to behold and a danger to drive on for the uninitiated.