Notations

By Kardi Teknomo, PhD.

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The alphabetical order notations below if for your reference in this tutorial. You can refer back later if necessary.

= Portion of distance per trip (half of the cycle) that normally traveled by all passengers (percent)

= Total benefit after conversion into present time value ($)

= Total cost after conversion into present time value ($)

= Interest rate (percent)

= Period of usage year that a bus can be operated from purchasing time until is sold again (years)

= average distance travel of by all passengers (km)

One cycle is from origin station to destination station and back to origin station again.

= Number of cycles (origin->destination->origin) that a bus can operate in one day (cycle/day)

= Benefit of a bus system from the operation per day ($/day)

= Total distance that a bus will operate in one day (km/day)

= Total distance that a bus will operate in one cycle (km/cycle).

= Monthly salary of a bus driver ($/month)

= Price of engine oil per can ($/can)

= Payment that passenger that received by the system ($/passenger)

= Price of the bus after usage year ($)

= Gasoline price per liter

= Purchasing cost of one bus ($)

= Average fluctuation of demand in that particular route (1/cycle)

= Average speed of operation that include the effect of traffic congestion (km/hour)

= Number of passengers in one cycle (passengers/cycle).

= Time reduction due stopping time to boarding and alighting of passengers along the way and some reduce time due to slowing down to get the passengers (hour/passenger).

= Total number of hours spends by a bus to operate in one cycle.

= Total yearly administrative (tax, vehicle inspection, administrators) and simple maintenance such as cleaning and painting ($/year)

= Total benefit in one year ($/year)

= Total distance of bus operation throughout one year (km/year)

= Bus driver salary for one year ($/year)

= Total cost due to engine oil for the operation of the bus ($/year)

= Total cost due to gasoline for the operation of the bus ($/year)

= Total operating cost in one year ($/year) which include all operation, administrative and maintenance cost but exclude initial purchasing cost.

= Total cost due to tire for the operation of the bus ($/year)

= Total distance of that a bus can run using one can of engine oil (km/can)

= Total distance of that a bus can run using one liter of gasoline (km/liter)

= Total distance of that one tire in a bus can run until need to be replaced (km)

= Total number of passenger can ride a bus (passengers)

= Number of working day per year that the bus can be operated

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This tutorial is copyrighted.

Preferable reference for this tutorial is

Teknomo, Kardi. Scenario and What If Analysis. http://people.revoledu.com/kardi/tutorial/What-If-Analysis/index.html