• New SPF functional form proposed that allows traffic volume to have different elasticities in ranges. Proposed for continuous relationship between predicted crash frequency and volume. models shown better fit observed data traditional other forms. Statistical of expected are referred as Safety Performance Functions (SPFs) the first edition American Association State Highway Transportation Off...

This study was an attempt to investigate the effect of metacognitive strategies (MS) on speakingability of the learners and also what MS are specifically employed by learners when it comes todifferent task types. To this end, running a quasi-experimental study, 60 students at advancedlevel (female) from Shenia Language Institute in Sanandaj were randomly selected and given anOxford Placement Te...

ieee power & energy magazine july/august 2013 1540-7977/13/$31.00©2013IEEE A Access to electric energy is An “indispensable element of sustainable human development,” according to the international energy Agency. Without access to modern, commercial energy, poor countries can be trapped in a vicious circle of poverty, social instability, and underdevelopment. About 1.6 billion people—more than ...

background and aim: traffic accident is one of the main causes of mortality in iran. the damage and injury caused by these accidents threatens human societies severely. rural accidents are often more severe and show harsher consequences because the operational speed is higher on rural roads and highways. world statistics presented by world health organization (who) reveal that about 25 percent ...