This study concerns road traffic noise in Greater Cairo, the capital and the largest city in Egypt and the eleventh biggest city in the world. Extensive measurements were carried out in 21 sites in Greater Cairo. Restrictions were introduced to improve environmental conditions including: (i) a ban on horns, (ii) a ban on horns and trucks, (iii) a ban on horns, trucks and noisy buses. Equivalent...

Inductive and capacitive coupling effects for high-speed global interconnects are studied via simulation. The impact of inductive coupling on delay and noise is found to be comparable to capacitive effects in high-speed buses. The results indicate that current-return paths are not strictly bounded by wide VDD/GND lines, so that inductive coupling is only partially eliminated by using shield wir...

Introduction Giorgio Gallo Federico Di Miele Dispatching Buses in Parking Depots Department of Computer Science, University of Pisa, Corso Italia 40, 56125 Pisa, Italy [email protected] Among the many different problems arising in the day-by-day operations of urban transportation companies, the problem of optimally managing the parking space in a vehicle depot has attracted little attention. Th...

The National Renewable Energy Laboratory (NREL) evaluated the performance of diesel, compressed natural gas (CNG), and hybrid electric (equipped with BAE Systems’ HybriDrive propulsion system) transit buses at New York City Transit (NYCT). CNG, Gen I and Gen II hybrid electric propulsion systems were compared on fuel economy, maintenance and operating costs per mile, and reliability. These comp...

1. I NI Of the 42,000 people killed in traffic accidents, only 6 are children on school buses. 2. I NI School buses are safe enough already. 3. I NI High-backed seats on school buses help to “package children like eggs.” 4. I NI Lap and shoulder belts reduce injuries by 45 percent. 5. I NI Padded seats are all that is needed to protect students from harm. 6. I NI Buses are seven times safer tha...