Folder_0046

NYC 9/11 Public Portal Document

volume of trucks or other construction vehicles expected 346. Assessment of Vehicular and Pedestrian Safety to access the site during those periods. This discussion Impacts also indicates whether the p eak ho,,,,, Jet what portion of LJ the construction vehicle aeeess and departureaie demand While the large majority of proposed actions will would occur at the same as peak commuting or back- not require a detailed analysis of safety impacts, for some ground traffic conditions in the area. For example, the actions, they may need to be addressed. Such actions analyses might note that during the peak construction may include the presence of sensitive land uses in the period approximately 10 to 15 trucks and 50 autos are vicinity of the proposed project, such as with hospitals, expected to bring construction workers to the site during schools, Izalks, nursing homes, or elderly housing, that the 7 to 8 AM peak arrival hour for construction-related could be affected by traffic volumes generated by the pro- activity, and 3 to 5 trucks and 15 autos are expected to do posed project. likewise during the 8 to 9 AM peak travel hour in the Another case could include the proposed project's study area today. proximity to a roadway that either has high accident rates or a design that makes it difficult for pedestrians to Lastly, the construction phase impact assessment traverse easily safely. One example of te,-thris-w~ldhe addresses the likely significance of any such impacts on wide boulevards 'with main -roads a sewjee-read 1.at the study area street network. Quantitatively, this could eften require pedestrians to cross '.'ithin twe signal include an evaluation of expected levels of service at a phases rather than one. would be a new school wh r small representative sample of intersections in the study principal access path transverses a hi h a id n area that would be affected by construction traffic, or an 1nctthn. a The absence of controlled pedestrian assessment that peak hour trips are likely to be small crosswalks at key access points elaajrtg to/from a enough not to have significant impacts on levels of proposed project, a !^u mm signal phase service, v/c ratios, or average vehicle delays. The impact at high turning volume assessment also indicates the routes that heavy traversed by significant pedestrian ! ), cros5j g construction vehicles would use to approach and depart locations with difficult sight lines, etc., may all serve as the site and whether or not any residential streets would indicators of current or future problems, and the be used. potential for significant impacts associated with the proposed project. The key issue to be resolved in safety 0 analyses is the extent to which -vehicular and p de trig exposure to accidents may reasonably b expected to increase with the proposed action in nla e

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The determination of significant impact potential will likely involve the experienced judgment of an individual knowledgeable in the traffic field. , __ __

teclay b r clearly delineating such impacts. The assessment of impacts can generally be made at a qualitative level, but should indicate the nature of the impact, the volumes affected by or affecting such impacts (including the types of vehicles, including trucks; and the age group of pedestrians, such as children or the elderly), and the likelihood of its severity, if possible. Inczcas pedestrian crossings at already-documented hiah-accidetj locations would result in increasingly unsafe conditions In addition. generating measurable nedestr an crossings at • non-controlled locations. midblock or intersection. especially for sites generating young nedesthans. such a

CEQR MANUAL 3O-26 10/01

NYC-WTC 000137578