A. DROP-OFFS AND LOW SHOULDERS
At the end of each work day the contractor shall backfill up to the edge and elevation of the existing pavement, areas within 6 feet of an open travel lane that have a drop-off of more than 3 inches (see Figure 1). The contractor shall backfill, in a similar manner, any areas within 6-10 feet of an open travel lane that have a drop-off of more than 6 inches.
Traffic shall be separated from any drop-offs of more than 1 foot either by a shoulder 10 or more feet wide or by an approved barrier. Slopes steeper than 2:1 are considered drop-offs. The backfill material shall be compacted and suit- able to support an errant vehicle. A "SOFT SHOULDER" (W8-4) or "LOW SHOULDER" (W8-9) sign shall be placed in advance of any such area.
(See Figure 1 - Backfill Detail)
B. UNEVEN AND ROUGH PAVEMENT
The contractor should maintain a smooth transition from existing pavement to the proposed paving operation. If a change in pavement elevation across an open travel lane exceeds 1 inch, a "BUMP" (W8-1) sign shall be placed at the point of the change in elevation. A change in pavement elevation across an open travel shall not be allowed to exceed 2 inches.
The difference in pavement elevation between two adjacent open travel lanes shall not be greater than 1 inch. Where such a difference in elevation exists, an "UNEVEN LANES" (W8-11) sign shall be placed in advance of the condition. A change in pavement elevation between two adjacent open travel lanes shall not be allowed to exceed 1.5 inches. A "ROUGH ROAD" (W8-8) sign shall be placed in advance of any milled areas of an open travel lane.
C. INGRESS AND EGRESS
Reasonable ingress and egress shall be maintained to all businesses and dwellings affected by the work activity. Access to driveways shall not be blocked unless reasonable alternative access is available or unless permission to block the driveway is granted by the affected property owner and/or tenant. Special attention shall be paid to maintaining easy access to fire hydrants.
D. STORAGE OF EQUIPMENT AND MATERIALS
During periods of construction inactivity, all construction equipment and materials may be stored in the right-of-way or temporary project easement, but must be placed safely 10 or more feet away from any open travel lane. It is recommended that all construction equipment and materials be stored on private property, which is posted against trespassing. It is the responsibility of the organization performing the work to obtain the permission to use a property for this purpose.
E. LANE WIDTHS
The minimum acceptable width of temporary travel lanes is 10 feet; however, a 12 feet wide lane is preferred and should be used wherever possible. A lane width of less than 10 feet will be accepted only where the existing permanent lanes are already less than 10 feet. In such cases, no additional narrowing of the lanes will be permitted.
F. WORKING BOTH SIDES OF ROADWAY
Work shall not be allowed on both sides of the road simultaneously within the same area except where the roadway is divided by a median. It will be acceptable to construct bore pits on each side of a roadway for boring utilities under the roadway.
G. OBSTRUCTION OF SERVICES
As far as is practicable, the TTC zone should not obstruct or interfere with services such as fire protection, mail pickup and delivery, transit stops, and garbage pickup.