Representative soil was evenly applied to an 800-m section of road surface. The test area was of sufficient length to allow for measurement at constant speeds of up to 72 km hr⁻¹. SCAMPER and TRAKER™ mobile measurement vehicles made repeated test runs while an instrumented tower measured upwind-downwind horizontal PM₁₀ flux. AP-42 methods were used to collect silt samples and calculate PM₁₀ emission factors. Both silt loadings and vehicle speeds were varied during the experiment. Street sweeping the as-found roadway showed an initial rise in PM₁₀ emission rates. Both TRAKER and SCAMPER measured rapid decay of PM₁₀ emission rates after depositing soil. Both the tower flux and AP-42 silt loading measurements were consistent with the mobile methods. Decaying particle suspension rates suggest emission rates are a function of both vehicle speed and silt loading. Mobile methods allow a cost-effective method of rapidly measuring PM₁₀ emissions from roadways.

将代表性土壤均匀地涂在800米长的路面上。测试区域具有足够的长度，以允许以高达72 km hr ^-1的恒定速度进行测量。SCAMPER和TRAKER™移动测量车进行了反复测试，而仪表塔测量了顺风向顺风的PM ₁₀通量。使用AP-42方法收集淤泥样品并计算PM ₁₀排放因子。在试验过程中，淤泥负荷和车速均发生变化。扫过已发现的道路的街道表明，PM ₁₀排放率最初有所上升。TRAKER和SCAMPER都测量了PM _10的快速衰减沉积土壤后的排放速率。塔的通量和AP-42的淤泥载荷测量均与移动方法一致。颗粒悬浮速率的下降表明排放速率是车速和淤泥负荷的函数。移动方法是一种经济有效的方法，可以快速测量道路上的PM ₁₀排放。