for example in road construction investing in secondary roads in rural areas has been found to have wideranging positive impacts and higher benefittocost ratios than investments in highways united nations rural roads that increase connectivity for rural areas obviously increase access to markets and related knowledge they also have benefits for household income poverty reduction and access to health care and education schweikert and chinowsky efficient transport systems can also reduce production costs alleviating the need to store large quantities of material and allowing large and small producers to work with justintime systems nordas and piermartini