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_. Existing Transporta#on Conditions <br /> <br /> Crow Canyon Road is an east/west route de6ned as a mute of regional signlt~_P~nce from <br /> the Alameda County/Contra Costa County border to Csamlno Tass2jarlL At the county line, <br /> Crow Canyon is a rural two-lane road which widens to four-lanes and then six-lanes with <br /> a raised median and sidewalks where land use is more commercial. Crow Canyon Road <br /> remnina six lanes untfi Alcosta Boulevard, where it narrows agnln to four lanes. A variety <br /> of mediana and roadside development exists depending on locations of existing land <br /> development. At Indian Rice Road, Crow Canyon widens to six lanes and remains six <br /> lanes to C-rn~no Tassajara. <br /> <br />' Routes o! Reg/ono/S/gn/ficance/n Danv/l/e Area - <br /> <br /> Camino Tassajara is an east/west route of regional significance from Sycamore Valley <br />' Road to Crow Canyon Road. Camino Tassajara is a four-lane road with a raised median, <br /> curbs, sidewalJ~-% and bike lanes as it leaves the community of Blackhawk and narrows to <br /> a two lane rural roadway south of Lawrence Road. Land uses in the vicinity of Blackhawk <br />-- are commercial and residential. Land uses for the southern pertions of Cnmino Tassajara <br /> are residential and rural. <br /> <br />- Sycamore Valley Road is an east/west four-lane route of regional significance with a <br /> raised median and sidewalks from 1-680 to C~mino Tassajara. <br /> <br />- Hartz Avenue is a two-lane route of regional significance from Danville Boulevard (it is a <br /> continuation of Danville Boulevard) to San P~rnon Valley Boulevard. Hartz Avenue is a <br /> main street in downtown Danville with sidewalks and parking on both sides. <br /> <br /> Danville Boulevard is a north/south route of regional significance from the northern <br /> boundary of the Tri-Valley area to Hartz Avenue. Danville Boulevard is two lanes north of <br /> _ Las Trompas Road, with a center turn lane and narrows to two lanes south of Las <br /> Trampas Road. At E1 Cerro, Danville Boulevard widens to four lanes with parking on both <br /> sides and bike lanes. <br /> <br /> San Ramon Valley Boulevard is also a route of regional significance in Danville. It is the <br /> continuation of Hartz Avenue south of Railroad Avenue. San Ramon Valley Boulevard has <br /> two lanes to the Danville town limit. <br /> <br /> Crow Canyon Road has a short segment that is within the Town of Danville. This <br /> segment is between Tassajara Ranch Drive and Camino Tassajara and is six lanes wide. <br /> <br /> Traffic Volumes and Capacity on Arterials <br /> <br /> Traffic vol_umes for the routes of regional significance were compiled from individual <br /> jurisdictions and Caltrans. These vol-mes are shown on Figure.2-2. <br /> <br /> Vol-mes on the mutes of regional significance are shown as avenge doily traffic (ADT) <br /> vol-mes. These roadway volumes are largest near major development/job centers and <br /> smallest on the fringes of the Tri-Valley area. Volumes are also high at certain major <br /> <br /> -- Barton-Aschman Associates, Inc. 17 <br /> <br /> <br />