Backlog

Definition

Units

Bus Shelters

The following represents a bus shelter backlog:

1. No shelter-type structures erected and maintained for a mass transit district, transportation district or any other public transportation agency for the use and convenience of the customers of said district or agency.

2. A shelter cannot accommodate 10-15 passengers

3. The structure is not appropriate (e.g. it should have metal sheeting for the roof cover and side cladding; seating can also be manufactured as part of the shelter structure.

Number

Taxi Ranks

Taxi rank backlogs are defined as those official ranks catering to more than 100 passengers a day through at least 12 of the 24 hours and lacks taxi rank facilities (seats, overhead cover/shelter for commuters, paving/interlocking blocks, ablution blocks, hawker stalls, high mast lights, waste disposal, washing bay, workshops etc.)

Lacks the following:

o 2,5m wide lanes where taxis will line up to pick up passengers

o Islands between the lanes with the typical width of 1,5m

o An open parking area for waiting taxis during off peak periods

o Sufficient maneuvering space at the entrance and exit sections of the lanes and shall be typically be 10.0m at both end

Number

Sidewalks

Gravel sidewalk

Backlog is represented by the following:

1. Route not leveled and all plant material or other debris not removed

2. Not constructed/Lacks the following:

o Top of the reworked surface shall be 150mm lower than the top of the kerb or the road level

o The imported gravel shall be at least G7 quality and shall be compacted to 93% modified AASHTO density

o Surface graded 1:100 towards the road in the case where no side channels are present in the streets. Where side channels are provided the surface shall be graded at 1:100 towards the side channels.

Km

Paved sidewalk

Backlog is represented by the following:

1. Route not leveled and all plant material or other debris not removed

2. Not constructed/Lacks the following:

o Top of the reworked surface shall be 180mm lower than the top of the kerb or the road surface,

o The in-situ material shall be compacted to provide even surface before a 100mm thick layer of imported gravel is placed.

o The imported gravel shall be at least G5 quality and shall be compacted to 93% modified AASHTO density

o The bedding sand layer of the of approximately 25 to 30mm shall be placed on and 50mm thick paving blocks shall then be packed in a suitable pattern to form the sidewalk

o The outer edge shall be restrained with either concrete garden kerbs or a concrete edge strip.

o The surface shall be graded at 1:100 towards the road in the case where no side drains are present. Where side drains are present the surface shall be graded at 1:100 towards the side drain.

Km

Tarred

No definition available yet.

Km

Pedestrian Bridges

No definition available yet.

Km