|
|
 |
|
The West Circle represents an area for the potential use of traffic controls
(1999). Courtesy Charles Benton.
|
|
Pedestrian barriers direct pedestrians to preferred circulation routes and define landscape spaces. Pedestrian barriers do not address hazardous conditions and associated code requirements. Traffic controls typically restrict vehicular circulation to roads, walks, and service areas. The family of barrier and control elements includes fences, walls, and bollard systems.
|
|
Design Intent:
- Use materials that are compatible with the landscape type, other site furnishings, and the architecture in the area.
- Construct at a height and scale appropriate for context and function.
|
|
Pedestrian Barriers/ Traffic Controls Summary
|
|
The Pedestrian Barriers and Traffic Control Table summarizes the appropriate location, material, color, and finish of each control item. The text following describes the control item's role and associated guidelines and standards. |
|
Oppenheimer Way will be returned to a pedestrian environment in the future.
The vignette illustrates:
- Maintaining prominent north-south views between the Mining Circle and Strawberry Creek.
- Rehabilitating the beaux-arts formality with appropriate plant material.
- Restoring the corridor to a pedestrian environment and using paving materials similar to Mining Circle environs.
- Incorporating wood benches in this neoclassical landscape and using low bollards to restrict vehicular access.
Fences serve as barriers for pedestrians where hedges would be ineffective or out of character. Their use is seen as a necessary intervention. The family of low fences appropriate for use in the Classical Core consists of a two-rail fence and a cable-rail fence.
Two-rail
The low, two-rail wood fence, for use along walks and paths, is a permanent structure that prohibits pedestrian traffic on steep slopes and banks and directs pedestrians away from intersections at vehicular crossings. This fence style is appropriate for use in the natural landscape type only. An example of a two-rail fence exists along Frank Schlessinger Way.
Design Intent:
- Construct only of rough sawn redwood or pressure treated Douglas fir, stained campus standard color (brown).
|
|
Cable-rail
The mid-level, cable-rail fence with wood posts, for use along walks and paths, is a permanent or temporary structure that directs pedestrians onto core walking surfaces and minimizes undesirable foot traffic off of established walks and paths. This fence style is appropriate for use in the natural and picturesque landscape types. An example of a cable-rail fence exists at the east end of West Oval.
Design Intent:
- For posts, construct only of rough sawn redwood or pressure treated Douglas fir, stained campus standard color (brown).
- For rails, construct of four strands of aircraft cables, equally spaced in proportion to the overall fence height.
|
|
Landscape walls are used to retain slopes, create raised planters, or separate outdoor spaces. They can also be used to integrate seating into the landscape. A well designed landscape wall discourages skateboard use along wall edges and surfaces. The family of walls appropriate for the Classical Core consists of stonewalls, stone veneer, balustrades, or formed concrete with an appropriate finish.
Design Intent:
- Consider opportunities for seating when possible.
Stonewall/Stone Veneer
The stonewall, or stone veneer wall, is appropriate as a retaining structure in the natural landscape type only. An example of a stonewall exists along Strawberry Creek next to the Alumni House.
Design Intent:
- Construct only of volcanic Napa-Sonoma fieldstone, brown-black in color, with recessed mortar joints.
|
|
Stonewall / stone veneer wall concept
|
|
|
|
Balustrades
A custom designed element, the balustrade is appropriate as a specialty element in the neoclassical and urban landscape types. An example of a neoclassical balustrade exists around the Campanile Esplanade.
Design Intent:
- Construct only of granite or precast concrete.
- Relate style, color, and finish to adjacent architecture or major site amenities.
|
|
Neoclassical balustrade concept
|
|
|
|
Formed Concrete
A formed, or poured-in-place, concrete wall can be used for retaining slopes, raised planters, as freestanding elements to define a space, or as optional seating elements. These walls are appropriate for use in the picturesque, neoclassical, and urban landscape types. An example of a formed concrete wall exists on the north side of Valley Life Sciences Building.
Design Intent:
- Construct only of natural gray concrete, with a sandblast finish.
|
|
Formed concrete wall concept
|
|
|
|
Bollards are used to limit vehicular access to selected roads, walks, and service areas. The family of bollard materials appropriate in the Classical Core consists of stone, precast concrete, and metal (ornate, retractable, or pipe styles).
Stone
Stone bollards are appropriate for use in the neoclassical landscape type. An example of stone bollards exists at the northwest corner of Evans Hall.
Design Intent:
- Complement neoclassical building materials in color, texture, and finish, and appropriately scale for pedestrian applications.
- Construct only from a cored, round, single-piece of granite.
Manufacturer:
Cold Spring Granite
Model:
Round, cored single-piece
Webpage:
www.coldspringgranite.com
Precast Concrete
Resembling a stone bollard in general appearance, a precast concrete may be used adjacent to neoclassical buildings or in plazas. Precast concrete bollards are appropriate for use in the neoclassical and urban landscape types. An example of precast concrete bollards exists at Tolman Hall breezeway.
Design Intent:
- Complement adjacent buildings in style, color, and finish.
Manufacturers:
Quick Crete, Dura Art Stone, or Napa Valley Cast Stone
Model:
Varies by architecture
Webpage:
www.quickcrete.com
www.duraartstone.com
www.napavalleycaststone.com
|
|
Stone and precast concrete bollards concept
|
|
|
|
Metal Ornate Bollard
An example of an ornate metal bollard exists outside of Stephens Hall, where an ornate design is used in conjunction with victorian and neoclassical architecture. Metal ornate bollards are appropriate for use in all landscape types.
Design Intent:
- Install as a single-piece, fluted cast aluminum post, permanently mounted on a concrete footing.
- Use color that relates to adjacent architecture or, as a default, use campus standard paint color (Elephant's Breath) to diminish the bollard's appearance.
Manufacturer:
Canterbury International
Model:
1890 Bollard
Webpage:
www.canterburyintl.com
Metal Retractable Bollard
The University is installing retractable bollards in response to a heightened interest in vehicle controls and security. The bollards may be either hydraulic or pneumatic. Metal retractable bollards are appropriate for use in all landscape types.
Design Intent:
- Locate at emergency or special vehicular service entries.
- Construct of stainless steel with a painted finish.
- Determine operation of the control unit on a project-by-project basis with direction from the Campus Landscape Architect.
- Match fixed bollards to retractable units when placed in the same location.
Manufacturer:
Delta Scientific Corp.
Model:
TT203, stainless steel
Webpage:
www.deltascientific.com
Metal Pipe Bollard
The pipe bollard may be a removable or fixed element. Metal pipe bollards are appropriate for use in all landscape types.
Design Intent:
- Construct only of aluminum or steel, not to exceed 3-inches in diameter.
- If a removable bollard, set sleeves in the paving and secure with padlocks.
- If a removable bollard, treat remaining hole and lock depression with safety cover, complying with accessibility code.
- Leave unpainted with a brushed finish.
|
|
Metal ornate, retractable, and pipe bollards concept
|
|
|
|
Wood
Wood bollards are permanent elements appropriate for use in the natural landscape type.
Design Intent:
- Construct only of rough sawn redwood or pressure treated Douglas fir, stained campus standard color (brown).
- Chamfer the top of the bollard to remove rough edges and to relate to the post construction for fences.
|
|
|
|
