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  2. Physical activity level - Wikipedia

    en.wikipedia.org/wiki/Physical_activity_level

    The physical activity level (PAL) is a way to express a person's daily physical activity as a number and is used to estimate their total energy expenditure. [1] In combination with the basal metabolic rate , it can be used to compute the amount of food energy a person needs to consume to maintain a particular lifestyle.

  3. Acceptable daily intake - Wikipedia

    en.wikipedia.org/wiki/Acceptable_Daily_Intake

    For instance, if the ADI is based on data from humans the safety factor is usually 10 instead of 100. The ADI is usually given in mg per kg body weight. [5] The ADI is considered a safe intake level for a healthy adult of normal weight who consumes an average daily amount of the substance in question.

  4. Trip generation - Wikipedia

    en.wikipedia.org/wiki/Trip_generation

    Non-home-based or non-residential trips are those a home base is not involved. In this case, the term production is given to the origin of a trip and the term attraction refers to the destination of the trip. Residential trip generation analysis is often undertaken using statistical regression. Person, transit, walking, and auto trips per unit ...

  5. Trip distribution - Wikipedia

    en.wikipedia.org/wiki/Trip_distribution

    Where: T ij = trips from origin i to destination j. Note that the practical value of trips on the diagonal, e.g. from zone 1 to zone 1, is zero since no intra-zonal trip occurs. Work trip distribution is the way that travel demand models understand how people take jobs.

  6. Annual average daily traffic - Wikipedia

    en.wikipedia.org/wiki/Annual_average_daily_traffic

    Annual average daily traffic (AADT) is a measure used primarily in transportation planning, transportation engineering and retail location selection. Traditionally, it is the total volume of vehicle traffic of a highway or road for a year divided by 365 days.

  7. Route assignment - Wikipedia

    en.wikipedia.org/wiki/Route_assignment

    The zonal interchange analysis of trip distribution provides origin-destination trip tables. Mode choice analysis tells which travelers will use which mode . To determine facility needs and costs and benefits, we need to know the number of travelers on each route and link of the network (a route is simply a chain of links between an origin and ...

  8. Route capacity - Wikipedia

    en.wikipedia.org/wiki/Route_capacity

    This leaflet provides a method of calculating route capacity based on the creation of paths through a rail route. The number of paths for a "standard" train is created, and then the train paths added. The total number of trains that can potentially enter the route, and leave it, as well as the actual number, can then be determined. [14]

  9. TRICS - Wikipedia

    en.wikipedia.org/wiki/TRICS

    TRICS (Trip Rate Information Computer System) ... It is now maintained by TRICS Consortium Ltd, based in Barnet, London. TRICS 7, a major update, was released in late ...